Home / 80,631.16-120,946.74-39,049

Finding the Fourth Proportional to 80,631.16, 120,946.74 and 39,049

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Solution

The fourth proportional to 80,631.16, 120,946.74 and 39,049 is: 58,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,631.16 : 120,946.74 = 39,049 : x
  2. Step 2: Convert to fraction form
    80,631.16/120,946.74 = 39,049/x
  3. Step 3: Cross multiply
    80,631.16x = 120,946.74 × 39,049
  4. Step 4: Simplify right side
    80,631.16x = 4,722,849,250.26
  5. Step 5: Solve for x
    x = 4,722,849,250.26/80,631.16
  6. Step 6: Final answer
    x = 58,573.50

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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.