Home / 91,711.70-126,508.40-57,666.23

Finding the Fourth Proportional to 91,711.70, 126,508.40 and 57,666.23

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Solution

The fourth proportional to 91,711.70, 126,508.40 and 57,666.23 is: 79,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.70 : 126,508.40 = 57,666.23 : x
  2. Step 2: Convert to fraction form
    91,711.70/126,508.40 = 57,666.23/x
  3. Step 3: Cross multiply
    91,711.70x = 126,508.40 × 57,666.23
  4. Step 4: Simplify right side
    91,711.70x = 7,295,262,203.00
  5. Step 5: Solve for x
    x = 7,295,262,203.00/91,711.70
  6. Step 6: Final answer
    x = 79,545.60

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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.