Home / 84,731.29-127,074.65-40,269.58

Finding the Fourth Proportional to 84,731.29, 127,074.65 and 40,269.58

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Solution

The fourth proportional to 84,731.29, 127,074.65 and 40,269.58 is: 60,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,731.29 : 127,074.65 = 40,269.58 : x
  2. Step 2: Convert to fraction form
    84,731.29/127,074.65 = 40,269.58/x
  3. Step 3: Cross multiply
    84,731.29x = 127,074.65 × 40,269.58
  4. Step 4: Simplify right side
    84,731.29x = 5,117,242,784.15
  5. Step 5: Solve for x
    x = 5,117,242,784.15/84,731.29
  6. Step 6: Final answer
    x = 60,393.78

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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.