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Finding the Fourth Proportional to 83,877.79, 115,754.54 and 48,074.71

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Solution

The fourth proportional to 83,877.79, 115,754.54 and 48,074.71 is: 66,344.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,877.79 : 115,754.54 = 48,074.71 : x
  2. Step 2: Convert to fraction form
    83,877.79/115,754.54 = 48,074.71/x
  3. Step 3: Cross multiply
    83,877.79x = 115,754.54 × 48,074.71
  4. Step 4: Simplify right side
    83,877.79x = 5,564,865,941.68
  5. Step 5: Solve for x
    x = 5,564,865,941.68/83,877.79
  6. Step 6: Final answer
    x = 66,344.93

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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.