Home / 78,427.08-108,155.58-60,493.68

Finding the Fourth Proportional to 78,427.08, 108,155.58 and 60,493.68

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Solution

The fourth proportional to 78,427.08, 108,155.58 and 60,493.68 is: 83,424.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,427.08 : 108,155.58 = 60,493.68 : x
  2. Step 2: Convert to fraction form
    78,427.08/108,155.58 = 60,493.68/x
  3. Step 3: Cross multiply
    78,427.08x = 108,155.58 × 60,493.68
  4. Step 4: Simplify right side
    78,427.08x = 6,542,729,046.73
  5. Step 5: Solve for x
    x = 6,542,729,046.73/78,427.08
  6. Step 6: Final answer
    x = 83,424.36

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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.