Home / 85,230.68-127,877.20-39,660.12

Finding the Fourth Proportional to 85,230.68, 127,877.20 and 39,660.12

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Solution

The fourth proportional to 85,230.68, 127,877.20 and 39,660.12 is: 59,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,230.68 : 127,877.20 = 39,660.12 : x
  2. Step 2: Convert to fraction form
    85,230.68/127,877.20 = 39,660.12/x
  3. Step 3: Cross multiply
    85,230.68x = 127,877.20 × 39,660.12
  4. Step 4: Simplify right side
    85,230.68x = 5,071,625,008.36
  5. Step 5: Solve for x
    x = 5,071,625,008.36/85,230.68
  6. Step 6: Final answer
    x = 59,504.68

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1.5x scale

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.