Home / 90,709,113.28-125,174,970.32-53,551,362.72

Finding the Fourth Proportional to 90,709,113.28, 125,174,970.32 and 53,551,362.72

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Solution

The fourth proportional to 90,709,113.28, 125,174,970.32 and 53,551,362.72 is: 73,898,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,709,113.28 : 125,174,970.32 = 53,551,362.72 : x
  2. Step 2: Convert to fraction form
    90,709,113.28/125,174,970.32 = 53,551,362.72/x
  3. Step 3: Cross multiply
    90,709,113.28x = 125,174,970.32 × 53,551,362.72
  4. Step 4: Simplify right side
    90,709,113.28x = 6,703,290,239,071,554
  5. Step 5: Solve for x
    x = 6,703,290,239,071,554/90,709,113.28
  6. Step 6: Final answer
    x = 73,898,751.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.