Home / 84,140.39-126,102.59-36,742.63

Finding the Fourth Proportional to 84,140.39, 126,102.59 and 36,742.63

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Solution

The fourth proportional to 84,140.39, 126,102.59 and 36,742.63 is: 55,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,140.39 : 126,102.59 = 36,742.63 : x
  2. Step 2: Convert to fraction form
    84,140.39/126,102.59 = 36,742.63/x
  3. Step 3: Cross multiply
    84,140.39x = 126,102.59 × 36,742.63
  4. Step 4: Simplify right side
    84,140.39x = 4,633,340,307.44
  5. Step 5: Solve for x
    x = 4,633,340,307.44/84,140.39
  6. Step 6: Final answer
    x = 55,066.78

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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.