Home / 51,877.89-71,593.41-28,909.79

Finding the Fourth Proportional to 51,877.89, 71,593.41 and 28,909.79

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Solution

The fourth proportional to 51,877.89, 71,593.41 and 28,909.79 is: 39,896.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,877.89 : 71,593.41 = 28,909.79 : x
  2. Step 2: Convert to fraction form
    51,877.89/71,593.41 = 28,909.79/x
  3. Step 3: Cross multiply
    51,877.89x = 71,593.41 × 28,909.79
  4. Step 4: Simplify right side
    51,877.89x = 2,069,750,090.52
  5. Step 5: Solve for x
    x = 2,069,750,090.52/51,877.89
  6. Step 6: Final answer
    x = 39,896.57

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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.