Home / 55,131.60-82,721.70-25,534.20

Finding the Fourth Proportional to 55,131.60, 82,721.70 and 25,534.20

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Solution

The fourth proportional to 55,131.60, 82,721.70 and 25,534.20 is: 38,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,131.60 : 82,721.70 = 25,534.20 : x
  2. Step 2: Convert to fraction form
    55,131.60/82,721.70 = 25,534.20/x
  3. Step 3: Cross multiply
    55,131.60x = 82,721.70 × 25,534.20
  4. Step 4: Simplify right side
    55,131.60x = 2,112,232,432.14
  5. Step 5: Solve for x
    x = 2,112,232,432.14/55,131.60
  6. Step 6: Final answer
    x = 38,312.55

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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.