Home / 75,279.03-112,929.51-40,199.55

Finding the Fourth Proportional to 75,279.03, 112,929.51 and 40,199.55

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Solution

The fourth proportional to 75,279.03, 112,929.51 and 40,199.55 is: 60,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,279.03 : 112,929.51 = 40,199.55 : x
  2. Step 2: Convert to fraction form
    75,279.03/112,929.51 = 40,199.55/x
  3. Step 3: Cross multiply
    75,279.03x = 112,929.51 × 40,199.55
  4. Step 4: Simplify right side
    75,279.03x = 4,539,715,483.72
  5. Step 5: Solve for x
    x = 4,539,715,483.72/75,279.03
  6. Step 6: Final answer
    x = 60,305.18

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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.