Home / 52,139.87-71,953.11-28,266.65

Finding the Fourth Proportional to 52,139.87, 71,953.11 and 28,266.65

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Solution

The fourth proportional to 52,139.87, 71,953.11 and 28,266.65 is: 39,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,139.87 : 71,953.11 = 28,266.65 : x
  2. Step 2: Convert to fraction form
    52,139.87/71,953.11 = 28,266.65/x
  3. Step 3: Cross multiply
    52,139.87x = 71,953.11 × 28,266.65
  4. Step 4: Simplify right side
    52,139.87x = 2,033,873,017.02
  5. Step 5: Solve for x
    x = 2,033,873,017.02/52,139.87
  6. Step 6: Final answer
    x = 39,008.02

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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.