Home / 91,778.76-126,699.18-61,553.04

Finding the Fourth Proportional to 91,778.76, 126,699.18 and 61,553.04

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Solution

The fourth proportional to 91,778.76, 126,699.18 and 61,553.04 is: 84,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,778.76 : 126,699.18 = 61,553.04 : x
  2. Step 2: Convert to fraction form
    91,778.76/126,699.18 = 61,553.04/x
  3. Step 3: Cross multiply
    91,778.76x = 126,699.18 × 61,553.04
  4. Step 4: Simplify right side
    91,778.76x = 7,798,719,694.51
  5. Step 5: Solve for x
    x = 7,798,719,694.51/91,778.76
  6. Step 6: Final answer
    x = 84,973.03

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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.