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Finding the Fourth Proportional to 91,675.65, 126,510.12 and 50,839.54

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Solution

The fourth proportional to 91,675.65, 126,510.12 and 50,839.54 is: 70,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,675.65 : 126,510.12 = 50,839.54 : x
  2. Step 2: Convert to fraction form
    91,675.65/126,510.12 = 50,839.54/x
  3. Step 3: Cross multiply
    91,675.65x = 126,510.12 × 50,839.54
  4. Step 4: Simplify right side
    91,675.65x = 6,431,716,306.14
  5. Step 5: Solve for x
    x = 6,431,716,306.14/91,675.65
  6. Step 6: Final answer
    x = 70,157.30

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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.