Home / 51,988.79-71,744.31-28,115.48

Finding the Fourth Proportional to 51,988.79, 71,744.31 and 28,115.48

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Solution

The fourth proportional to 51,988.79, 71,744.31 and 28,115.48 is: 38,799.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.79 : 71,744.31 = 28,115.48 : x
  2. Step 2: Convert to fraction form
    51,988.79/71,744.31 = 28,115.48/x
  3. Step 3: Cross multiply
    51,988.79x = 71,744.31 × 28,115.48
  4. Step 4: Simplify right side
    51,988.79x = 2,017,125,354.20
  5. Step 5: Solve for x
    x = 2,017,125,354.20/51,988.79
  6. Step 6: Final answer
    x = 38,799.24

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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.