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Finding the Fourth Proportional to 86,548.80, 129,823.20 and 57,024.30

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Solution

The fourth proportional to 86,548.80, 129,823.20 and 57,024.30 is: 85,536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,548.80 : 129,823.20 = 57,024.30 : x
  2. Step 2: Convert to fraction form
    86,548.80/129,823.20 = 57,024.30/x
  3. Step 3: Cross multiply
    86,548.80x = 129,823.20 × 57,024.30
  4. Step 4: Simplify right side
    86,548.80x = 7,403,077,103.76
  5. Step 5: Solve for x
    x = 7,403,077,103.76/86,548.80
  6. Step 6: Final answer
    x = 85,536.45

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Similar ratio
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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.