Home / 69,851.20-96,389.28-38,019.40

Finding the Fourth Proportional to 69,851.20, 96,389.28 and 38,019.40

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Solution

The fourth proportional to 69,851.20, 96,389.28 and 38,019.40 is: 52,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,851.20 : 96,389.28 = 38,019.40 : x
  2. Step 2: Convert to fraction form
    69,851.20/96,389.28 = 38,019.40/x
  3. Step 3: Cross multiply
    69,851.20x = 96,389.28 × 38,019.40
  4. Step 4: Simplify right side
    69,851.20x = 3,664,662,592.03
  5. Step 5: Solve for x
    x = 3,664,662,592.03/69,851.20
  6. Step 6: Final answer
    x = 52,463.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.