Home / 84,339.18-126,508.78-34,442.77

Finding the Fourth Proportional to 84,339.18, 126,508.78 and 34,442.77

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Solution

The fourth proportional to 84,339.18, 126,508.78 and 34,442.77 is: 51,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,339.18 : 126,508.78 = 34,442.77 : x
  2. Step 2: Convert to fraction form
    84,339.18/126,508.78 = 34,442.77/x
  3. Step 3: Cross multiply
    84,339.18x = 126,508.78 × 34,442.77
  4. Step 4: Simplify right side
    84,339.18x = 4,357,312,812.52
  5. Step 5: Solve for x
    x = 4,357,312,812.52/84,339.18
  6. Step 6: Final answer
    x = 51,664.16

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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.