Home / 71,340.21-107,011.53-26,987.85

Finding the Fourth Proportional to 71,340.21, 107,011.53 and 26,987.85

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Solution

The fourth proportional to 71,340.21, 107,011.53 and 26,987.85 is: 40,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,340.21 : 107,011.53 = 26,987.85 : x
  2. Step 2: Convert to fraction form
    71,340.21/107,011.53 = 26,987.85/x
  3. Step 3: Cross multiply
    71,340.21x = 107,011.53 × 26,987.85
  4. Step 4: Simplify right side
    71,340.21x = 2,888,011,119.91
  5. Step 5: Solve for x
    x = 2,888,011,119.91/71,340.21
  6. Step 6: Final answer
    x = 40,482.23

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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.