Home / 90,778.54-125,186.43-60,565.09

Finding the Fourth Proportional to 90,778.54, 125,186.43 and 60,565.09

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Solution

The fourth proportional to 90,778.54, 125,186.43 and 60,565.09 is: 83,521.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,778.54 : 125,186.43 = 60,565.09 : x
  2. Step 2: Convert to fraction form
    90,778.54/125,186.43 = 60,565.09/x
  3. Step 3: Cross multiply
    90,778.54x = 125,186.43 × 60,565.09
  4. Step 4: Simplify right side
    90,778.54x = 7,581,927,399.73
  5. Step 5: Solve for x
    x = 7,581,927,399.73/90,778.54
  6. Step 6: Final answer
    x = 83,521.14

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1.5x scale

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.