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Finding the Fourth Proportional to 75,101.76, 103,610.88 and 52,434.72

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Solution

The fourth proportional to 75,101.76, 103,610.88 and 52,434.72 is: 72,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,101.76 : 103,610.88 = 52,434.72 : x
  2. Step 2: Convert to fraction form
    75,101.76/103,610.88 = 52,434.72/x
  3. Step 3: Cross multiply
    75,101.76x = 103,610.88 × 52,434.72
  4. Step 4: Simplify right side
    75,101.76x = 5,432,807,481.75
  5. Step 5: Solve for x
    x = 5,432,807,481.75/75,101.76
  6. Step 6: Final answer
    x = 72,339.28

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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.