Home / 97,715.20-146,464.80-38,531.20

Finding the Fourth Proportional to 97,715.20, 146,464.80 and 38,531.20

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Solution

The fourth proportional to 97,715.20, 146,464.80 and 38,531.20 is: 57,754.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,715.20 : 146,464.80 = 38,531.20 : x
  2. Step 2: Convert to fraction form
    97,715.20/146,464.80 = 38,531.20/x
  3. Step 3: Cross multiply
    97,715.20x = 146,464.80 × 38,531.20
  4. Step 4: Simplify right side
    97,715.20x = 5,643,464,501.76
  5. Step 5: Solve for x
    x = 5,643,464,501.76/97,715.20
  6. Step 6: Final answer
    x = 57,754.21

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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.