Home / 48,453.12-72,680.40-31,919.04

Finding the Fourth Proportional to 48,453.12, 72,680.40 and 31,919.04

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Solution

The fourth proportional to 48,453.12, 72,680.40 and 31,919.04 is: 47,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,453.12 : 72,680.40 = 31,919.04 : x
  2. Step 2: Convert to fraction form
    48,453.12/72,680.40 = 31,919.04/x
  3. Step 3: Cross multiply
    48,453.12x = 72,680.40 × 31,919.04
  4. Step 4: Simplify right side
    48,453.12x = 2,319,888,594.82
  5. Step 5: Solve for x
    x = 2,319,888,594.82/48,453.12
  6. Step 6: Final answer
    x = 47,879.03

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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.