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Finding the Fourth Proportional to 90,624.66, 125,064.02 and 49,789.32

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Solution

The fourth proportional to 90,624.66, 125,064.02 and 49,789.32 is: 68,710.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,624.66 : 125,064.02 = 49,789.32 : x
  2. Step 2: Convert to fraction form
    90,624.66/125,064.02 = 49,789.32/x
  3. Step 3: Cross multiply
    90,624.66x = 125,064.02 × 49,789.32
  4. Step 4: Simplify right side
    90,624.66x = 6,226,851,887.68
  5. Step 5: Solve for x
    x = 6,226,851,887.68/90,624.66
  6. Step 6: Final answer
    x = 68,710.35

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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.