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Finding the Fourth Proportional to 81,280.58, 112,162.68 and 45,463.68

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Solution

The fourth proportional to 81,280.58, 112,162.68 and 45,463.68 is: 62,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,280.58 : 112,162.68 = 45,463.68 : x
  2. Step 2: Convert to fraction form
    81,280.58/112,162.68 = 45,463.68/x
  3. Step 3: Cross multiply
    81,280.58x = 112,162.68 × 45,463.68
  4. Step 4: Simplify right side
    81,280.58x = 5,099,328,191.46
  5. Step 5: Solve for x
    x = 5,099,328,191.46/81,280.58
  6. Step 6: Final answer
    x = 62,737.35

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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.