Home / 67,179.04-100,739.40-39,127.12

Finding the Fourth Proportional to 67,179.04, 100,739.40 and 39,127.12

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Solution

The fourth proportional to 67,179.04, 100,739.40 and 39,127.12 is: 58,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,179.04 : 100,739.40 = 39,127.12 : x
  2. Step 2: Convert to fraction form
    67,179.04/100,739.40 = 39,127.12/x
  3. Step 3: Cross multiply
    67,179.04x = 100,739.40 × 39,127.12
  4. Step 4: Simplify right side
    67,179.04x = 3,941,642,592.53
  5. Step 5: Solve for x
    x = 3,941,642,592.53/67,179.04
  6. Step 6: Final answer
    x = 58,673.70

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1.5x scale

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.