Home / 75,061.60-112,556.04-30,670.72

Finding the Fourth Proportional to 75,061.60, 112,556.04 and 30,670.72

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Solution

The fourth proportional to 75,061.60, 112,556.04 and 30,670.72 is: 45,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,061.60 : 112,556.04 = 30,670.72 : x
  2. Step 2: Convert to fraction form
    75,061.60/112,556.04 = 30,670.72/x
  3. Step 3: Cross multiply
    75,061.60x = 112,556.04 × 30,670.72
  4. Step 4: Simplify right side
    75,061.60x = 3,452,174,787.15
  5. Step 5: Solve for x
    x = 3,452,174,787.15/75,061.60
  6. Step 6: Final answer
    x = 45,991.22

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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.