Home / 74,645.40-103,031.82-49,170.36

Finding the Fourth Proportional to 74,645.40, 103,031.82 and 49,170.36

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Solution

The fourth proportional to 74,645.40, 103,031.82 and 49,170.36 is: 67,869.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,645.40 : 103,031.82 = 49,170.36 : x
  2. Step 2: Convert to fraction form
    74,645.40/103,031.82 = 49,170.36/x
  3. Step 3: Cross multiply
    74,645.40x = 103,031.82 × 49,170.36
  4. Step 4: Simplify right side
    74,645.40x = 5,066,111,680.86
  5. Step 5: Solve for x
    x = 5,066,111,680.86/74,645.40
  6. Step 6: Final answer
    x = 67,869.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.