Home / 51,385.35-70,920.80-29,881.75

Finding the Fourth Proportional to 51,385.35, 70,920.80 and 29,881.75

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Solution

The fourth proportional to 51,385.35, 70,920.80 and 29,881.75 is: 41,242.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.35 : 70,920.80 = 29,881.75 : x
  2. Step 2: Convert to fraction form
    51,385.35/70,920.80 = 29,881.75/x
  3. Step 3: Cross multiply
    51,385.35x = 70,920.80 × 29,881.75
  4. Step 4: Simplify right side
    51,385.35x = 2,119,237,512.80
  5. Step 5: Solve for x
    x = 2,119,237,512.80/51,385.35
  6. Step 6: Final answer
    x = 41,242.06

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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.