Home / 51,851.28-71,560.16-31,721.57

Finding the Fourth Proportional to 51,851.28, 71,560.16 and 31,721.57

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Solution

The fourth proportional to 51,851.28, 71,560.16 and 31,721.57 is: 43,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,851.28 : 71,560.16 = 31,721.57 : x
  2. Step 2: Convert to fraction form
    51,851.28/71,560.16 = 31,721.57/x
  3. Step 3: Cross multiply
    51,851.28x = 71,560.16 × 31,721.57
  4. Step 4: Simplify right side
    51,851.28x = 2,270,000,624.65
  5. Step 5: Solve for x
    x = 2,270,000,624.65/51,851.28
  6. Step 6: Final answer
    x = 43,779.07

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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.