Home / 51,531.06-71,120.38-28,871.59

Finding the Fourth Proportional to 51,531.06, 71,120.38 and 28,871.59

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Solution

The fourth proportional to 51,531.06, 71,120.38 and 28,871.59 is: 39,847.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,531.06 : 71,120.38 = 28,871.59 : x
  2. Step 2: Convert to fraction form
    51,531.06/71,120.38 = 28,871.59/x
  3. Step 3: Cross multiply
    51,531.06x = 71,120.38 × 28,871.59
  4. Step 4: Simplify right side
    51,531.06x = 2,053,358,435.18
  5. Step 5: Solve for x
    x = 2,053,358,435.18/51,531.06
  6. Step 6: Final answer
    x = 39,847.00

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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.