Home / 84,291.47-126,312.05-34,310.42

Finding the Fourth Proportional to 84,291.47, 126,312.05 and 34,310.42

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Solution

The fourth proportional to 84,291.47, 126,312.05 and 34,310.42 is: 51,414.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,291.47 : 126,312.05 = 34,310.42 : x
  2. Step 2: Convert to fraction form
    84,291.47/126,312.05 = 34,310.42/x
  3. Step 3: Cross multiply
    84,291.47x = 126,312.05 × 34,310.42
  4. Step 4: Simplify right side
    84,291.47x = 4,333,818,683.45
  5. Step 5: Solve for x
    x = 4,333,818,683.45/84,291.47
  6. Step 6: Final answer
    x = 51,414.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.