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Finding the Fourth Proportional to 81,560.93, 112,593.65 and 54,693.63

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Solution

The fourth proportional to 81,560.93, 112,593.65 and 54,693.63 is: 75,503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,560.93 : 112,593.65 = 54,693.63 : x
  2. Step 2: Convert to fraction form
    81,560.93/112,593.65 = 54,693.63/x
  3. Step 3: Cross multiply
    81,560.93x = 112,593.65 × 54,693.63
  4. Step 4: Simplify right side
    81,560.93x = 6,158,155,159.98
  5. Step 5: Solve for x
    x = 6,158,155,159.98/81,560.93
  6. Step 6: Final answer
    x = 75,503.74

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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.