Home / 48,422.40-72,656.16-28,739.68

Finding the Fourth Proportional to 48,422.40, 72,656.16 and 28,739.68

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Solution

The fourth proportional to 48,422.40, 72,656.16 and 28,739.68 is: 43,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,422.40 : 72,656.16 = 28,739.68 : x
  2. Step 2: Convert to fraction form
    48,422.40/72,656.16 = 28,739.68/x
  3. Step 3: Cross multiply
    48,422.40x = 72,656.16 × 28,739.68
  4. Step 4: Simplify right side
    48,422.40x = 2,088,114,788.43
  5. Step 5: Solve for x
    x = 2,088,114,788.43/48,422.40
  6. Step 6: Final answer
    x = 43,122.91

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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.