Home / 48,520.81-72,780.40-21,851.97

Finding the Fourth Proportional to 48,520.81, 72,780.40 and 21,851.97

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Solution

The fourth proportional to 48,520.81, 72,780.40 and 21,851.97 is: 32,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,520.81 : 72,780.40 = 21,851.97 : x
  2. Step 2: Convert to fraction form
    48,520.81/72,780.40 = 21,851.97/x
  3. Step 3: Cross multiply
    48,520.81x = 72,780.40 × 21,851.97
  4. Step 4: Simplify right side
    48,520.81x = 1,590,395,117.39
  5. Step 5: Solve for x
    x = 1,590,395,117.39/48,520.81
  6. Step 6: Final answer
    x = 32,777.59

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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.