Home / 80,130.60-120,223.74-30,225.08

Finding the Fourth Proportional to 80,130.60, 120,223.74 and 30,225.08

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Solution

The fourth proportional to 80,130.60, 120,223.74 and 30,225.08 is: 45,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,130.60 : 120,223.74 = 30,225.08 : x
  2. Step 2: Convert to fraction form
    80,130.60/120,223.74 = 30,225.08/x
  3. Step 3: Cross multiply
    80,130.60x = 120,223.74 × 30,225.08
  4. Step 4: Simplify right side
    80,130.60x = 3,633,772,573.30
  5. Step 5: Solve for x
    x = 3,633,772,573.30/80,130.60
  6. Step 6: Final answer
    x = 45,348.13

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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.