Home / 60,647.10-90,873.45-38,420.70

Finding the Fourth Proportional to 60,647.10, 90,873.45 and 38,420.70

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Solution

The fourth proportional to 60,647.10, 90,873.45 and 38,420.70 is: 57,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,647.10 : 90,873.45 = 38,420.70 : x
  2. Step 2: Convert to fraction form
    60,647.10/90,873.45 = 38,420.70/x
  3. Step 3: Cross multiply
    60,647.10x = 90,873.45 × 38,420.70
  4. Step 4: Simplify right side
    60,647.10x = 3,491,421,560.42
  5. Step 5: Solve for x
    x = 3,491,421,560.42/60,647.10
  6. Step 6: Final answer
    x = 57,569.47

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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.