Home / 86,809.50-130,214.12-57,011.85

Finding the Fourth Proportional to 86,809.50, 130,214.12 and 57,011.85

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Solution

The fourth proportional to 86,809.50, 130,214.12 and 57,011.85 is: 85,517.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,809.50 : 130,214.12 = 57,011.85 : x
  2. Step 2: Convert to fraction form
    86,809.50/130,214.12 = 57,011.85/x
  3. Step 3: Cross multiply
    86,809.50x = 130,214.12 × 57,011.85
  4. Step 4: Simplify right side
    86,809.50x = 7,423,747,592.26
  5. Step 5: Solve for x
    x = 7,423,747,592.26/86,809.50
  6. Step 6: Final answer
    x = 85,517.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.