Home / 90,318.28-124,637.88-50,031.92

Finding the Fourth Proportional to 90,318.28, 124,637.88 and 50,031.92

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Solution

The fourth proportional to 90,318.28, 124,637.88 and 50,031.92 is: 69,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318.28 : 124,637.88 = 50,031.92 : x
  2. Step 2: Convert to fraction form
    90,318.28/124,637.88 = 50,031.92/x
  3. Step 3: Cross multiply
    90,318.28x = 124,637.88 × 50,031.92
  4. Step 4: Simplify right side
    90,318.28x = 6,235,872,441.13
  5. Step 5: Solve for x
    x = 6,235,872,441.13/90,318.28
  6. Step 6: Final answer
    x = 69,043.30

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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.