Home / 91,781.16-126,657.18-51,494.06

Finding the Fourth Proportional to 91,781.16, 126,657.18 and 51,494.06

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Solution

The fourth proportional to 91,781.16, 126,657.18 and 51,494.06 is: 71,061.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,781.16 : 126,657.18 = 51,494.06 : x
  2. Step 2: Convert to fraction form
    91,781.16/126,657.18 = 51,494.06/x
  3. Step 3: Cross multiply
    91,781.16x = 126,657.18 × 51,494.06
  4. Step 4: Simplify right side
    91,781.16x = 6,522,091,793.06
  5. Step 5: Solve for x
    x = 6,522,091,793.06/91,781.16
  6. Step 6: Final answer
    x = 71,061.34

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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.