Home / 74,971.28-112,451.16-30,586.16

Finding the Fourth Proportional to 74,971.28, 112,451.16 and 30,586.16

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Solution

The fourth proportional to 74,971.28, 112,451.16 and 30,586.16 is: 45,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,971.28 : 112,451.16 = 30,586.16 : x
  2. Step 2: Convert to fraction form
    74,971.28/112,451.16 = 30,586.16/x
  3. Step 3: Cross multiply
    74,971.28x = 112,451.16 × 30,586.16
  4. Step 4: Simplify right side
    74,971.28x = 3,439,449,171.95
  5. Step 5: Solve for x
    x = 3,439,449,171.95/74,971.28
  6. Step 6: Final answer
    x = 45,876.89

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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.