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Finding the Fourth Proportional to 90,445.62, 124,857.81 and 60,281.22

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Solution

The fourth proportional to 90,445.62, 124,857.81 and 60,281.22 is: 83,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,445.62 : 124,857.81 = 60,281.22 : x
  2. Step 2: Convert to fraction form
    90,445.62/124,857.81 = 60,281.22/x
  3. Step 3: Cross multiply
    90,445.62x = 124,857.81 × 60,281.22
  4. Step 4: Simplify right side
    90,445.62x = 7,526,581,113.33
  5. Step 5: Solve for x
    x = 7,526,581,113.33/90,445.62
  6. Step 6: Final answer
    x = 83,216.65

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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.