Home / 91,709.97-126,505.98-57,664.50

Finding the Fourth Proportional to 91,709.97, 126,505.98 and 57,664.50

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Solution

The fourth proportional to 91,709.97, 126,505.98 and 57,664.50 is: 79,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,709.97 : 126,505.98 = 57,664.50 : x
  2. Step 2: Convert to fraction form
    91,709.97/126,505.98 = 57,664.50/x
  3. Step 3: Cross multiply
    91,709.97x = 126,505.98 × 57,664.50
  4. Step 4: Simplify right side
    91,709.97x = 7,294,904,083.71
  5. Step 5: Solve for x
    x = 7,294,904,083.71/91,709.97
  6. Step 6: Final answer
    x = 79,543.20

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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.