Home / 84,869.60-127,288.20-25,707.20

Finding the Fourth Proportional to 84,869.60, 127,288.20 and 25,707.20

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Solution

The fourth proportional to 84,869.60, 127,288.20 and 25,707.20 is: 38,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,869.60 : 127,288.20 = 25,707.20 : x
  2. Step 2: Convert to fraction form
    84,869.60/127,288.20 = 25,707.20/x
  3. Step 3: Cross multiply
    84,869.60x = 127,288.20 × 25,707.20
  4. Step 4: Simplify right side
    84,869.60x = 3,272,223,215.04
  5. Step 5: Solve for x
    x = 3,272,223,215.04/84,869.60
  6. Step 6: Final answer
    x = 38,555.89

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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.