Home / 48,180.61-72,291.59-18,619.20

Finding the Fourth Proportional to 48,180.61, 72,291.59 and 18,619.20

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Solution

The fourth proportional to 48,180.61, 72,291.59 and 18,619.20 is: 27,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,180.61 : 72,291.59 = 18,619.20 : x
  2. Step 2: Convert to fraction form
    48,180.61/72,291.59 = 18,619.20/x
  3. Step 3: Cross multiply
    48,180.61x = 72,291.59 × 18,619.20
  4. Step 4: Simplify right side
    48,180.61x = 1,346,011,572.53
  5. Step 5: Solve for x
    x = 1,346,011,572.53/48,180.61
  6. Step 6: Final answer
    x = 27,936.79

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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.