Home / 48,139.35-72,186.24-28,154.63

Finding the Fourth Proportional to 48,139.35, 72,186.24 and 28,154.63

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Solution

The fourth proportional to 48,139.35, 72,186.24 and 28,154.63 is: 42,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,139.35 : 72,186.24 = 28,154.63 : x
  2. Step 2: Convert to fraction form
    48,139.35/72,186.24 = 28,154.63/x
  3. Step 3: Cross multiply
    48,139.35x = 72,186.24 × 28,154.63
  4. Step 4: Simplify right side
    48,139.35x = 2,032,376,376.59
  5. Step 5: Solve for x
    x = 2,032,376,376.59/48,139.35
  6. Step 6: Final answer
    x = 42,218.61

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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.