Home / 84,729.29-127,071.65-40,267.58

Finding the Fourth Proportional to 84,729.29, 127,071.65 and 40,267.58

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Solution

The fourth proportional to 84,729.29, 127,071.65 and 40,267.58 is: 60,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,729.29 : 127,071.65 = 40,267.58 : x
  2. Step 2: Convert to fraction form
    84,729.29/127,071.65 = 40,267.58/x
  3. Step 3: Cross multiply
    84,729.29x = 127,071.65 × 40,267.58
  4. Step 4: Simplify right side
    84,729.29x = 5,116,867,297.42
  5. Step 5: Solve for x
    x = 5,116,867,297.42/84,729.29
  6. Step 6: Final answer
    x = 60,390.78

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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.