Home / 67,012.80-92,479.28-36,387.20

Finding the Fourth Proportional to 67,012.80, 92,479.28 and 36,387.20

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Solution

The fourth proportional to 67,012.80, 92,479.28 and 36,387.20 is: 50,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,012.80 : 92,479.28 = 36,387.20 : x
  2. Step 2: Convert to fraction form
    67,012.80/92,479.28 = 36,387.20/x
  3. Step 3: Cross multiply
    67,012.80x = 92,479.28 × 36,387.20
  4. Step 4: Simplify right side
    67,012.80x = 3,365,061,948.72
  5. Step 5: Solve for x
    x = 3,365,061,948.72/67,012.80
  6. Step 6: Final answer
    x = 50,215.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.