Home / 80,534.12-111,119.16-48,702.32

Finding the Fourth Proportional to 80,534.12, 111,119.16 and 48,702.32

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Solution

The fourth proportional to 80,534.12, 111,119.16 and 48,702.32 is: 67,198.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,534.12 : 111,119.16 = 48,702.32 : x
  2. Step 2: Convert to fraction form
    80,534.12/111,119.16 = 48,702.32/x
  3. Step 3: Cross multiply
    80,534.12x = 111,119.16 × 48,702.32
  4. Step 4: Simplify right side
    80,534.12x = 5,411,760,888.45
  5. Step 5: Solve for x
    x = 5,411,760,888.45/80,534.12
  6. Step 6: Final answer
    x = 67,198.36

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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.