Home / 80,016.18-120,038.88-27,430.98

Finding the Fourth Proportional to 80,016.18, 120,038.88 and 27,430.98

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Solution

The fourth proportional to 80,016.18, 120,038.88 and 27,430.98 is: 41,151.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,016.18 : 120,038.88 = 27,430.98 : x
  2. Step 2: Convert to fraction form
    80,016.18/120,038.88 = 27,430.98/x
  3. Step 3: Cross multiply
    80,016.18x = 120,038.88 × 27,430.98
  4. Step 4: Simplify right side
    80,016.18x = 3,292,784,116.50
  5. Step 5: Solve for x
    x = 3,292,784,116.50/80,016.18
  6. Step 6: Final answer
    x = 41,151.48

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1.5x scale

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.