Home / 74,124.02-111,206.80-29,781.90

Finding the Fourth Proportional to 74,124.02, 111,206.80 and 29,781.90

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Solution

The fourth proportional to 74,124.02, 111,206.80 and 29,781.90 is: 44,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,124.02 : 111,206.80 = 29,781.90 : x
  2. Step 2: Convert to fraction form
    74,124.02/111,206.80 = 29,781.90/x
  3. Step 3: Cross multiply
    74,124.02x = 111,206.80 × 29,781.90
  4. Step 4: Simplify right side
    74,124.02x = 3,311,949,796.92
  5. Step 5: Solve for x
    x = 3,311,949,796.92/74,124.02
  6. Step 6: Final answer
    x = 44,681.20

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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.