Home / 62,421.38-86,141.50-40,104.26

Finding the Fourth Proportional to 62,421.38, 86,141.50 and 40,104.26

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Solution

The fourth proportional to 62,421.38, 86,141.50 and 40,104.26 is: 55,343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,421.38 : 86,141.50 = 40,104.26 : x
  2. Step 2: Convert to fraction form
    62,421.38/86,141.50 = 40,104.26/x
  3. Step 3: Cross multiply
    62,421.38x = 86,141.50 × 40,104.26
  4. Step 4: Simplify right side
    62,421.38x = 3,454,640,581.82
  5. Step 5: Solve for x
    x = 3,454,640,581.82/62,421.38
  6. Step 6: Final answer
    x = 55,343.87

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1.5x scale

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.