Home / 91,772.48-126,669.30-62,712.61

Finding the Fourth Proportional to 91,772.48, 126,669.30 and 62,712.61

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Solution

The fourth proportional to 91,772.48, 126,669.30 and 62,712.61 is: 86,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,772.48 : 126,669.30 = 62,712.61 : x
  2. Step 2: Convert to fraction form
    91,772.48/126,669.30 = 62,712.61/x
  3. Step 3: Cross multiply
    91,772.48x = 126,669.30 × 62,712.61
  4. Step 4: Simplify right side
    91,772.48x = 7,943,762,409.87
  5. Step 5: Solve for x
    x = 7,943,762,409.87/91,772.48
  6. Step 6: Final answer
    x = 86,559.31

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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.