Home / 91,710.08-126,506.17-57,664.61

Finding the Fourth Proportional to 91,710.08, 126,506.17 and 57,664.61

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Solution

The fourth proportional to 91,710.08, 126,506.17 and 57,664.61 is: 79,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,710.08 : 126,506.17 = 57,664.61 : x
  2. Step 2: Convert to fraction form
    91,710.08/126,506.17 = 57,664.61/x
  3. Step 3: Cross multiply
    91,710.08x = 126,506.17 × 57,664.61
  4. Step 4: Simplify right side
    91,710.08x = 7,294,928,955.64
  5. Step 5: Solve for x
    x = 7,294,928,955.64/91,710.08
  6. Step 6: Final answer
    x = 79,543.37

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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.