Home / 91,827.71-126,712.51-51,545.90

Finding the Fourth Proportional to 91,827.71, 126,712.51 and 51,545.90

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Solution

The fourth proportional to 91,827.71, 126,712.51 and 51,545.90 is: 71,127.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,827.71 : 126,712.51 = 51,545.90 : x
  2. Step 2: Convert to fraction form
    91,827.71/126,712.51 = 51,545.90/x
  3. Step 3: Cross multiply
    91,827.71x = 126,712.51 × 51,545.90
  4. Step 4: Simplify right side
    91,827.71x = 6,531,510,428.26
  5. Step 5: Solve for x
    x = 6,531,510,428.26/91,827.71
  6. Step 6: Final answer
    x = 71,127.88

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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.