Home / 91,513.43-126,251.28-57,511.02

Finding the Fourth Proportional to 91,513.43, 126,251.28 and 57,511.02

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Solution

The fourth proportional to 91,513.43, 126,251.28 and 57,511.02 is: 79,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,513.43 : 126,251.28 = 57,511.02 : x
  2. Step 2: Convert to fraction form
    91,513.43/126,251.28 = 57,511.02/x
  3. Step 3: Cross multiply
    91,513.43x = 126,251.28 × 57,511.02
  4. Step 4: Simplify right side
    91,513.43x = 7,260,839,889.11
  5. Step 5: Solve for x
    x = 7,260,839,889.11/91,513.43
  6. Step 6: Final answer
    x = 79,341.80

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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.