Home / 51,500.16-71,070.72-28,531.20

Finding the Fourth Proportional to 51,500.16, 71,070.72 and 28,531.20

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Solution

The fourth proportional to 51,500.16, 71,070.72 and 28,531.20 is: 39,373.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,500.16 : 71,070.72 = 28,531.20 : x
  2. Step 2: Convert to fraction form
    51,500.16/71,070.72 = 28,531.20/x
  3. Step 3: Cross multiply
    51,500.16x = 71,070.72 × 28,531.20
  4. Step 4: Simplify right side
    51,500.16x = 2,027,732,926.46
  5. Step 5: Solve for x
    x = 2,027,732,926.46/51,500.16
  6. Step 6: Final answer
    x = 39,373.33

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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.