Home / 83,614.12-115,423.48-51,353.96

Finding the Fourth Proportional to 83,614.12, 115,423.48 and 51,353.96

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Solution

The fourth proportional to 83,614.12, 115,423.48 and 51,353.96 is: 70,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,614.12 : 115,423.48 = 51,353.96 : x
  2. Step 2: Convert to fraction form
    83,614.12/115,423.48 = 51,353.96/x
  3. Step 3: Cross multiply
    83,614.12x = 115,423.48 × 51,353.96
  4. Step 4: Simplify right side
    83,614.12x = 5,927,452,774.98
  5. Step 5: Solve for x
    x = 5,927,452,774.98/83,614.12
  6. Step 6: Final answer
    x = 70,890.57

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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.