Home / 97,686.56-146,431.08-38,499.20

Finding the Fourth Proportional to 97,686.56, 146,431.08 and 38,499.20

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Solution

The fourth proportional to 97,686.56, 146,431.08 and 38,499.20 is: 57,709.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,686.56 : 146,431.08 = 38,499.20 : x
  2. Step 2: Convert to fraction form
    97,686.56/146,431.08 = 38,499.20/x
  3. Step 3: Cross multiply
    97,686.56x = 146,431.08 × 38,499.20
  4. Step 4: Simplify right side
    97,686.56x = 5,637,479,435.14
  5. Step 5: Solve for x
    x = 5,637,479,435.14/97,686.56
  6. Step 6: Final answer
    x = 57,709.88

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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.