Home / 85,098.20-127,660.80-25,920.14

Finding the Fourth Proportional to 85,098.20, 127,660.80 and 25,920.14

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Solution

The fourth proportional to 85,098.20, 127,660.80 and 25,920.14 is: 38,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,098.20 : 127,660.80 = 25,920.14 : x
  2. Step 2: Convert to fraction form
    85,098.20/127,660.80 = 25,920.14/x
  3. Step 3: Cross multiply
    85,098.20x = 127,660.80 × 25,920.14
  4. Step 4: Simplify right side
    85,098.20x = 3,308,985,808.51
  5. Step 5: Solve for x
    x = 3,308,985,808.51/85,098.20
  6. Step 6: Final answer
    x = 38,884.32

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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.