Home / 48,531.61-72,783.05-21,862.18

Finding the Fourth Proportional to 48,531.61, 72,783.05 and 21,862.18

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Solution

The fourth proportional to 48,531.61, 72,783.05 and 21,862.18 is: 32,786.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,531.61 : 72,783.05 = 21,862.18 : x
  2. Step 2: Convert to fraction form
    48,531.61/72,783.05 = 21,862.18/x
  3. Step 3: Cross multiply
    48,531.61x = 72,783.05 × 21,862.18
  4. Step 4: Simplify right side
    48,531.61x = 1,591,195,848.78
  5. Step 5: Solve for x
    x = 1,591,195,848.78/48,531.61
  6. Step 6: Final answer
    x = 32,786.79

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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.