Home / 47,909.68-66,115.80-26,688.88

Finding the Fourth Proportional to 47,909.68, 66,115.80 and 26,688.88

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Solution

The fourth proportional to 47,909.68, 66,115.80 and 26,688.88 is: 36,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,909.68 : 66,115.80 = 26,688.88 : x
  2. Step 2: Convert to fraction form
    47,909.68/66,115.80 = 26,688.88/x
  3. Step 3: Cross multiply
    47,909.68x = 66,115.80 × 26,688.88
  4. Step 4: Simplify right side
    47,909.68x = 1,764,556,652.30
  5. Step 5: Solve for x
    x = 1,764,556,652.30/47,909.68
  6. Step 6: Final answer
    x = 36,830.90

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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.