Home / 39,680.02-59,548.92-31,981.78

Finding the Fourth Proportional to 39,680.02, 59,548.92 and 31,981.78

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Solution

The fourth proportional to 39,680.02, 59,548.92 and 31,981.78 is: 47,995.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.02 : 59,548.92 = 31,981.78 : x
  2. Step 2: Convert to fraction form
    39,680.02/59,548.92 = 31,981.78/x
  3. Step 3: Cross multiply
    39,680.02x = 59,548.92 × 31,981.78
  4. Step 4: Simplify right side
    39,680.02x = 1,904,480,458.68
  5. Step 5: Solve for x
    x = 1,904,480,458.68/39,680.02
  6. Step 6: Final answer
    x = 47,995.96

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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.