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Finding the Fourth Proportional to 75,999.80, 114,002.03 and 26,079.20

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Solution

The fourth proportional to 75,999.80, 114,002.03 and 26,079.20 is: 39,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,999.80 : 114,002.03 = 26,079.20 : x
  2. Step 2: Convert to fraction form
    75,999.80/114,002.03 = 26,079.20/x
  3. Step 3: Cross multiply
    75,999.80x = 114,002.03 × 26,079.20
  4. Step 4: Simplify right side
    75,999.80x = 2,973,081,663.47
  5. Step 5: Solve for x
    x = 2,973,081,663.47/75,999.80
  6. Step 6: Final answer
    x = 39,119.60

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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.