Home / 80,510.61-111,082.08-50,326.64

Finding the Fourth Proportional to 80,510.61, 111,082.08 and 50,326.64

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Solution

The fourth proportional to 80,510.61, 111,082.08 and 50,326.64 is: 69,436.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510.61 : 111,082.08 = 50,326.64 : x
  2. Step 2: Convert to fraction form
    80,510.61/111,082.08 = 50,326.64/x
  3. Step 3: Cross multiply
    80,510.61x = 111,082.08 × 50,326.64
  4. Step 4: Simplify right side
    80,510.61x = 5,590,387,850.61
  5. Step 5: Solve for x
    x = 5,590,387,850.61/80,510.61
  6. Step 6: Final answer
    x = 69,436.66

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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.