Home / 51,539.29-71,128.56-28,877.92

Finding the Fourth Proportional to 51,539.29, 71,128.56 and 28,877.92

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Solution

The fourth proportional to 51,539.29, 71,128.56 and 28,877.92 is: 39,853.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,539.29 : 71,128.56 = 28,877.92 : x
  2. Step 2: Convert to fraction form
    51,539.29/71,128.56 = 28,877.92/x
  3. Step 3: Cross multiply
    51,539.29x = 71,128.56 × 28,877.92
  4. Step 4: Simplify right side
    51,539.29x = 2,054,044,795.87
  5. Step 5: Solve for x
    x = 2,054,044,795.87/51,539.29
  6. Step 6: Final answer
    x = 39,853.96

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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.