Home / 90,318.07-124,637.31-50,031.71

Finding the Fourth Proportional to 90,318.07, 124,637.31 and 50,031.71

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Solution

The fourth proportional to 90,318.07, 124,637.31 and 50,031.71 is: 69,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318.07 : 124,637.31 = 50,031.71 : x
  2. Step 2: Convert to fraction form
    90,318.07/124,637.31 = 50,031.71/x
  3. Step 3: Cross multiply
    90,318.07x = 124,637.31 × 50,031.71
  4. Step 4: Simplify right side
    90,318.07x = 6,235,817,452.59
  5. Step 5: Solve for x
    x = 6,235,817,452.59/90,318.07
  6. Step 6: Final answer
    x = 69,042.85

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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.