Home / 52,501.08-78,708.06-20,891.64

Finding the Fourth Proportional to 52,501.08, 78,708.06 and 20,891.64

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Solution

The fourth proportional to 52,501.08, 78,708.06 and 20,891.64 is: 31,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,501.08 : 78,708.06 = 20,891.64 : x
  2. Step 2: Convert to fraction form
    52,501.08/78,708.06 = 20,891.64/x
  3. Step 3: Cross multiply
    52,501.08x = 78,708.06 × 20,891.64
  4. Step 4: Simplify right side
    52,501.08x = 1,644,340,454.62
  5. Step 5: Solve for x
    x = 1,644,340,454.62/52,501.08
  6. Step 6: Final answer
    x = 31,320.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.