Home / 80,532.12-111,116.40-48,700.32

Finding the Fourth Proportional to 80,532.12, 111,116.40 and 48,700.32

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Solution

The fourth proportional to 80,532.12, 111,116.40 and 48,700.32 is: 67,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,532.12 : 111,116.40 = 48,700.32 : x
  2. Step 2: Convert to fraction form
    80,532.12/111,116.40 = 48,700.32/x
  3. Step 3: Cross multiply
    80,532.12x = 111,116.40 × 48,700.32
  4. Step 4: Simplify right side
    80,532.12x = 5,411,404,237.25
  5. Step 5: Solve for x
    x = 5,411,404,237.25/80,532.12
  6. Step 6: Final answer
    x = 67,195.60

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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.