Home / 80,655.95-111,275.47-48,813.23

Finding the Fourth Proportional to 80,655.95, 111,275.47 and 48,813.23

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Solution

The fourth proportional to 80,655.95, 111,275.47 and 48,813.23 is: 67,344.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,655.95 : 111,275.47 = 48,813.23 : x
  2. Step 2: Convert to fraction form
    80,655.95/111,275.47 = 48,813.23/x
  3. Step 3: Cross multiply
    80,655.95x = 111,275.47 × 48,813.23
  4. Step 4: Simplify right side
    80,655.95x = 5,431,715,449.67
  5. Step 5: Solve for x
    x = 5,431,715,449.67/80,655.95
  6. Step 6: Final answer
    x = 67,344.26

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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.