Home / 97,680.56-146,422.08-38,493.20

Finding the Fourth Proportional to 97,680.56, 146,422.08 and 38,493.20

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Solution

The fourth proportional to 97,680.56, 146,422.08 and 38,493.20 is: 57,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,680.56 : 146,422.08 = 38,493.20 : x
  2. Step 2: Convert to fraction form
    97,680.56/146,422.08 = 38,493.20/x
  3. Step 3: Cross multiply
    97,680.56x = 146,422.08 × 38,493.20
  4. Step 4: Simplify right side
    97,680.56x = 5,636,254,409.86
  5. Step 5: Solve for x
    x = 5,636,254,409.86/97,680.56
  6. Step 6: Final answer
    x = 57,700.88

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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.