Home / 90,899.28-125,400.52-53,156.88

Finding the Fourth Proportional to 90,899.28, 125,400.52 and 53,156.88

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Solution

The fourth proportional to 90,899.28, 125,400.52 and 53,156.88 is: 73,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,899.28 : 125,400.52 = 53,156.88 : x
  2. Step 2: Convert to fraction form
    90,899.28/125,400.52 = 53,156.88/x
  3. Step 3: Cross multiply
    90,899.28x = 125,400.52 × 53,156.88
  4. Step 4: Simplify right side
    90,899.28x = 6,665,900,393.58
  5. Step 5: Solve for x
    x = 6,665,900,393.58/90,899.28
  6. Step 6: Final answer
    x = 73,332.82

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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.