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Finding the Fourth Proportional to 83,681.46, 115,480.40 and 45,955.71

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Solution

The fourth proportional to 83,681.46, 115,480.40 and 45,955.71 is: 63,418.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,681.46 : 115,480.40 = 45,955.71 : x
  2. Step 2: Convert to fraction form
    83,681.46/115,480.40 = 45,955.71/x
  3. Step 3: Cross multiply
    83,681.46x = 115,480.40 × 45,955.71
  4. Step 4: Simplify right side
    83,681.46x = 5,306,983,543.31
  5. Step 5: Solve for x
    x = 5,306,983,543.31/83,681.46
  6. Step 6: Final answer
    x = 63,418.87

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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.