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Finding the Fourth Proportional to 90,336, 124,610.08 and 54,504.80

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Solution

The fourth proportional to 90,336, 124,610.08 and 54,504.80 is: 75,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,336 : 124,610.08 = 54,504.80 : x
  2. Step 2: Convert to fraction form
    90,336/124,610.08 = 54,504.80/x
  3. Step 3: Cross multiply
    90,336x = 124,610.08 × 54,504.80
  4. Step 4: Simplify right side
    90,336x = 6,791,847,488.38
  5. Step 5: Solve for x
    x = 6,791,847,488.38/90,336
  6. Step 6: Final answer
    x = 75,184.28

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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.