Home / 80,077.22-120,188.27-42,668.89

Finding the Fourth Proportional to 80,077.22, 120,188.27 and 42,668.89

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Solution

The fourth proportional to 80,077.22, 120,188.27 and 42,668.89 is: 64,041.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,077.22 : 120,188.27 = 42,668.89 : x
  2. Step 2: Convert to fraction form
    80,077.22/120,188.27 = 42,668.89/x
  3. Step 3: Cross multiply
    80,077.22x = 120,188.27 × 42,668.89
  4. Step 4: Simplify right side
    80,077.22x = 5,128,299,878.12
  5. Step 5: Solve for x
    x = 5,128,299,878.12/80,077.22
  6. Step 6: Final answer
    x = 64,041.93

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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.