Home / 55,589.52-76,712.80-30,439.04

Finding the Fourth Proportional to 55,589.52, 76,712.80 and 30,439.04

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Solution

The fourth proportional to 55,589.52, 76,712.80 and 30,439.04 is: 42,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,589.52 : 76,712.80 = 30,439.04 : x
  2. Step 2: Convert to fraction form
    55,589.52/76,712.80 = 30,439.04/x
  3. Step 3: Cross multiply
    55,589.52x = 76,712.80 × 30,439.04
  4. Step 4: Simplify right side
    55,589.52x = 2,335,063,987.71
  5. Step 5: Solve for x
    x = 2,335,063,987.71/55,589.52
  6. Step 6: Final answer
    x = 42,005.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.