Home / 51,530.12-71,116.15-28,868.97

Finding the Fourth Proportional to 51,530.12, 71,116.15 and 28,868.97

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Solution

The fourth proportional to 51,530.12, 71,116.15 and 28,868.97 is: 39,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,530.12 : 71,116.15 = 28,868.97 : x
  2. Step 2: Convert to fraction form
    51,530.12/71,116.15 = 28,868.97/x
  3. Step 3: Cross multiply
    51,530.12x = 71,116.15 × 28,868.97
  4. Step 4: Simplify right side
    51,530.12x = 2,053,050,030.68
  5. Step 5: Solve for x
    x = 2,053,050,030.68/51,530.12
  6. Step 6: Final answer
    x = 39,841.74

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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.