Home / 39,781.02-59,671.26-12,079.02

Finding the Fourth Proportional to 39,781.02, 59,671.26 and 12,079.02

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Solution

The fourth proportional to 39,781.02, 59,671.26 and 12,079.02 is: 18,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.02 : 59,671.26 = 12,079.02 : x
  2. Step 2: Convert to fraction form
    39,781.02/59,671.26 = 12,079.02/x
  3. Step 3: Cross multiply
    39,781.02x = 59,671.26 × 12,079.02
  4. Step 4: Simplify right side
    39,781.02x = 720,770,342.97
  5. Step 5: Solve for x
    x = 720,770,342.97/39,781.02
  6. Step 6: Final answer
    x = 18,118.45

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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.