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Finding the Fourth Proportional to 90,522.54, 124,920.57 and 52,281.57

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Solution

The fourth proportional to 90,522.54, 124,920.57 and 52,281.57 is: 72,148.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,522.54 : 124,920.57 = 52,281.57 : x
  2. Step 2: Convert to fraction form
    90,522.54/124,920.57 = 52,281.57/x
  3. Step 3: Cross multiply
    90,522.54x = 124,920.57 × 52,281.57
  4. Step 4: Simplify right side
    90,522.54x = 6,531,043,524.89
  5. Step 5: Solve for x
    x = 6,531,043,524.89/90,522.54
  6. Step 6: Final answer
    x = 72,148.26

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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.