Home / 48,038.20-72,138.30-40,132.60

Finding the Fourth Proportional to 48,038.20, 72,138.30 and 40,132.60

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Solution

The fourth proportional to 48,038.20, 72,138.30 and 40,132.60 is: 60,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,038.20 : 72,138.30 = 40,132.60 : x
  2. Step 2: Convert to fraction form
    48,038.20/72,138.30 = 40,132.60/x
  3. Step 3: Cross multiply
    48,038.20x = 72,138.30 × 40,132.60
  4. Step 4: Simplify right side
    48,038.20x = 2,895,097,538.58
  5. Step 5: Solve for x
    x = 2,895,097,538.58/48,038.20
  6. Step 6: Final answer
    x = 60,266.57

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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.