Home / 81,416.43-112,355.84-47,424.04

Finding the Fourth Proportional to 81,416.43, 112,355.84 and 47,424.04

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Solution

The fourth proportional to 81,416.43, 112,355.84 and 47,424.04 is: 65,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,416.43 : 112,355.84 = 47,424.04 : x
  2. Step 2: Convert to fraction form
    81,416.43/112,355.84 = 47,424.04/x
  3. Step 3: Cross multiply
    81,416.43x = 112,355.84 × 47,424.04
  4. Step 4: Simplify right side
    81,416.43x = 5,328,367,850.39
  5. Step 5: Solve for x
    x = 5,328,367,850.39/81,416.43
  6. Step 6: Final answer
    x = 65,445.85

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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.