Home / 90,698.65-125,158.78-50,411.03

Finding the Fourth Proportional to 90,698.65, 125,158.78 and 50,411.03

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Solution

The fourth proportional to 90,698.65, 125,158.78 and 50,411.03 is: 69,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,698.65 : 125,158.78 = 50,411.03 : x
  2. Step 2: Convert to fraction form
    90,698.65/125,158.78 = 50,411.03/x
  3. Step 3: Cross multiply
    90,698.65x = 125,158.78 × 50,411.03
  4. Step 4: Simplify right side
    90,698.65x = 6,309,382,574.42
  5. Step 5: Solve for x
    x = 6,309,382,574.42/90,698.65
  6. Step 6: Final answer
    x = 69,564.24

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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.