Home / 91,555.56-126,359.46-66,144.14

Finding the Fourth Proportional to 91,555.56, 126,359.46 and 66,144.14

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Solution

The fourth proportional to 91,555.56, 126,359.46 and 66,144.14 is: 91,288.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,555.56 : 126,359.46 = 66,144.14 : x
  2. Step 2: Convert to fraction form
    91,555.56/126,359.46 = 66,144.14/x
  3. Step 3: Cross multiply
    91,555.56x = 126,359.46 × 66,144.14
  4. Step 4: Simplify right side
    91,555.56x = 8,357,937,812.56
  5. Step 5: Solve for x
    x = 8,357,937,812.56/91,555.56
  6. Step 6: Final answer
    x = 91,288.15

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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.