Home / 91,772.60-126,669.47-62,712.74

Finding the Fourth Proportional to 91,772.60, 126,669.47 and 62,712.74

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Solution

The fourth proportional to 91,772.60, 126,669.47 and 62,712.74 is: 86,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,772.60 : 126,669.47 = 62,712.74 : x
  2. Step 2: Convert to fraction form
    91,772.60/126,669.47 = 62,712.74/x
  3. Step 3: Cross multiply
    91,772.60x = 126,669.47 × 62,712.74
  4. Step 4: Simplify right side
    91,772.60x = 7,943,788,904.70
  5. Step 5: Solve for x
    x = 7,943,788,904.70/91,772.60
  6. Step 6: Final answer
    x = 86,559.48

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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.