Home / 78,648.14-108,488.48-55,652.13

Finding the Fourth Proportional to 78,648.14, 108,488.48 and 55,652.13

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Solution

The fourth proportional to 78,648.14, 108,488.48 and 55,652.13 is: 76,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,648.14 : 108,488.48 = 55,652.13 : x
  2. Step 2: Convert to fraction form
    78,648.14/108,488.48 = 55,652.13/x
  3. Step 3: Cross multiply
    78,648.14x = 108,488.48 × 55,652.13
  4. Step 4: Simplify right side
    78,648.14x = 6,037,614,714.20
  5. Step 5: Solve for x
    x = 6,037,614,714.20/78,648.14
  6. Step 6: Final answer
    x = 76,767.42

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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.