Home / 65,505.38-90,190.18-59,519.14

Finding the Fourth Proportional to 65,505.38, 90,190.18 and 59,519.14

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Solution

The fourth proportional to 65,505.38, 90,190.18 and 59,519.14 is: 81,948.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,505.38 : 90,190.18 = 59,519.14 : x
  2. Step 2: Convert to fraction form
    65,505.38/90,190.18 = 59,519.14/x
  3. Step 3: Cross multiply
    65,505.38x = 90,190.18 × 59,519.14
  4. Step 4: Simplify right side
    65,505.38x = 5,368,041,950.05
  5. Step 5: Solve for x
    x = 5,368,041,950.05/65,505.38
  6. Step 6: Final answer
    x = 81,948.11

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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.