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Finding the Fourth Proportional to 80,008.62, 110,407.34 and 47,779.59

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Solution

The fourth proportional to 80,008.62, 110,407.34 and 47,779.59 is: 65,933.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,008.62 : 110,407.34 = 47,779.59 : x
  2. Step 2: Convert to fraction form
    80,008.62/110,407.34 = 47,779.59/x
  3. Step 3: Cross multiply
    80,008.62x = 110,407.34 × 47,779.59
  4. Step 4: Simplify right side
    80,008.62x = 5,275,217,199.29
  5. Step 5: Solve for x
    x = 5,275,217,199.29/80,008.62
  6. Step 6: Final answer
    x = 65,933.11

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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.