Home / 80,534.10-120,848.64-30,656.16

Finding the Fourth Proportional to 80,534.10, 120,848.64 and 30,656.16

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Solution

The fourth proportional to 80,534.10, 120,848.64 and 30,656.16 is: 46,002.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,534.10 : 120,848.64 = 30,656.16 : x
  2. Step 2: Convert to fraction form
    80,534.10/120,848.64 = 30,656.16/x
  3. Step 3: Cross multiply
    80,534.10x = 120,848.64 × 30,656.16
  4. Step 4: Simplify right side
    80,534.10x = 3,704,755,243.62
  5. Step 5: Solve for x
    x = 3,704,755,243.62/80,534.10
  6. Step 6: Final answer
    x = 46,002.32

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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.