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Finding the Fourth Proportional to 90,134.58, 124,382.58 and 51,892.86

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Solution

The fourth proportional to 90,134.58, 124,382.58 and 51,892.86 is: 71,610.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,134.58 : 124,382.58 = 51,892.86 : x
  2. Step 2: Convert to fraction form
    90,134.58/124,382.58 = 51,892.86/x
  3. Step 3: Cross multiply
    90,134.58x = 124,382.58 × 51,892.86
  4. Step 4: Simplify right side
    90,134.58x = 6,454,567,810.38
  5. Step 5: Solve for x
    x = 6,454,567,810.38/90,134.58
  6. Step 6: Final answer
    x = 71,610.34

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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.