Home / 91,555.68-126,359.64-66,144.26

Finding the Fourth Proportional to 91,555.68, 126,359.64 and 66,144.26

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Solution

The fourth proportional to 91,555.68, 126,359.64 and 66,144.26 is: 91,288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,555.68 : 126,359.64 = 66,144.26 : x
  2. Step 2: Convert to fraction form
    91,555.68/126,359.64 = 66,144.26/x
  3. Step 3: Cross multiply
    91,555.68x = 126,359.64 × 66,144.26
  4. Step 4: Simplify right side
    91,555.68x = 8,357,964,881.67
  5. Step 5: Solve for x
    x = 8,357,964,881.67/91,555.68
  6. Step 6: Final answer
    x = 91,288.33

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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.