Home / 80,501.13-120,747.81-30,577.32

Finding the Fourth Proportional to 80,501.13, 120,747.81 and 30,577.32

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Solution

The fourth proportional to 80,501.13, 120,747.81 and 30,577.32 is: 45,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,501.13 : 120,747.81 = 30,577.32 : x
  2. Step 2: Convert to fraction form
    80,501.13/120,747.81 = 30,577.32/x
  3. Step 3: Cross multiply
    80,501.13x = 120,747.81 × 30,577.32
  4. Step 4: Simplify right side
    80,501.13x = 3,692,144,425.67
  5. Step 5: Solve for x
    x = 3,692,144,425.67/80,501.13
  6. Step 6: Final answer
    x = 45,864.50

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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.