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Finding the Fourth Proportional to 90,535.35, 124,909.82 and 52,289.82

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Solution

The fourth proportional to 90,535.35, 124,909.82 and 52,289.82 is: 72,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,535.35 : 124,909.82 = 52,289.82 : x
  2. Step 2: Convert to fraction form
    90,535.35/124,909.82 = 52,289.82/x
  3. Step 3: Cross multiply
    90,535.35x = 124,909.82 × 52,289.82
  4. Step 4: Simplify right side
    90,535.35x = 6,531,511,742.58
  5. Step 5: Solve for x
    x = 6,531,511,742.58/90,535.35
  6. Step 6: Final answer
    x = 72,143.22

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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.