Home / 78,341.76-108,192.32-67,098.24

Finding the Fourth Proportional to 78,341.76, 108,192.32 and 67,098.24

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Solution

The fourth proportional to 78,341.76, 108,192.32 and 67,098.24 is: 92,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,341.76 : 108,192.32 = 67,098.24 : x
  2. Step 2: Convert to fraction form
    78,341.76/108,192.32 = 67,098.24/x
  3. Step 3: Cross multiply
    78,341.76x = 108,192.32 × 67,098.24
  4. Step 4: Simplify right side
    78,341.76x = 7,259,514,253.52
  5. Step 5: Solve for x
    x = 7,259,514,253.52/78,341.76
  6. Step 6: Final answer
    x = 92,664.68

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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.