Home / 51,718.90-71,373.04-28,750.88

Finding the Fourth Proportional to 51,718.90, 71,373.04 and 28,750.88

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Solution

The fourth proportional to 51,718.90, 71,373.04 and 28,750.88 is: 39,676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,718.90 : 71,373.04 = 28,750.88 : x
  2. Step 2: Convert to fraction form
    51,718.90/71,373.04 = 28,750.88/x
  3. Step 3: Cross multiply
    51,718.90x = 71,373.04 × 28,750.88
  4. Step 4: Simplify right side
    51,718.90x = 2,052,037,708.28
  5. Step 5: Solve for x
    x = 2,052,037,708.28/51,718.90
  6. Step 6: Final answer
    x = 39,676.75

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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.