Home / 65,943.32-98,930.54-21,569.90

Finding the Fourth Proportional to 65,943.32, 98,930.54 and 21,569.90

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Solution

The fourth proportional to 65,943.32, 98,930.54 and 21,569.90 is: 32,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,943.32 : 98,930.54 = 21,569.90 : x
  2. Step 2: Convert to fraction form
    65,943.32/98,930.54 = 21,569.90/x
  3. Step 3: Cross multiply
    65,943.32x = 98,930.54 × 21,569.90
  4. Step 4: Simplify right side
    65,943.32x = 2,133,921,854.75
  5. Step 5: Solve for x
    x = 2,133,921,854.75/65,943.32
  6. Step 6: Final answer
    x = 32,359.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.