Home / 51,555.89-71,149.10-28,895.06

Finding the Fourth Proportional to 51,555.89, 71,149.10 and 28,895.06

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Solution

The fourth proportional to 51,555.89, 71,149.10 and 28,895.06 is: 39,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,555.89 : 71,149.10 = 28,895.06 : x
  2. Step 2: Convert to fraction form
    51,555.89/71,149.10 = 28,895.06/x
  3. Step 3: Cross multiply
    51,555.89x = 71,149.10 × 28,895.06
  4. Step 4: Simplify right side
    51,555.89x = 2,055,857,013.23
  5. Step 5: Solve for x
    x = 2,055,857,013.23/51,555.89
  6. Step 6: Final answer
    x = 39,876.28

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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.