Home / 91,909.18-126,833.88-51,623.56

Finding the Fourth Proportional to 91,909.18, 126,833.88 and 51,623.56

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Solution

The fourth proportional to 91,909.18, 126,833.88 and 51,623.56 is: 71,240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,909.18 : 126,833.88 = 51,623.56 : x
  2. Step 2: Convert to fraction form
    91,909.18/126,833.88 = 51,623.56/x
  3. Step 3: Cross multiply
    91,909.18x = 126,833.88 × 51,623.56
  4. Step 4: Simplify right side
    91,909.18x = 6,547,616,414.21
  5. Step 5: Solve for x
    x = 6,547,616,414.21/91,909.18
  6. Step 6: Final answer
    x = 71,240.07

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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.