Home / 48,454.12-72,681.90-31,920.04

Finding the Fourth Proportional to 48,454.12, 72,681.90 and 31,920.04

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Solution

The fourth proportional to 48,454.12, 72,681.90 and 31,920.04 is: 47,880.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,454.12 : 72,681.90 = 31,920.04 : x
  2. Step 2: Convert to fraction form
    48,454.12/72,681.90 = 31,920.04/x
  3. Step 3: Cross multiply
    48,454.12x = 72,681.90 × 31,920.04
  4. Step 4: Simplify right side
    48,454.12x = 2,320,009,155.28
  5. Step 5: Solve for x
    x = 2,320,009,155.28/48,454.12
  6. Step 6: Final answer
    x = 47,880.53

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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.