Home / 74,911.12-112,335.42-30,507.64

Finding the Fourth Proportional to 74,911.12, 112,335.42 and 30,507.64

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Solution

The fourth proportional to 74,911.12, 112,335.42 and 30,507.64 is: 45,748.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,911.12 : 112,335.42 = 30,507.64 : x
  2. Step 2: Convert to fraction form
    74,911.12/112,335.42 = 30,507.64/x
  3. Step 3: Cross multiply
    74,911.12x = 112,335.42 × 30,507.64
  4. Step 4: Simplify right side
    74,911.12x = 3,427,088,552.61
  5. Step 5: Solve for x
    x = 3,427,088,552.61/74,911.12
  6. Step 6: Final answer
    x = 45,748.73

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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.