Home / 84,865.30-127,125.15-43,335.70

Finding the Fourth Proportional to 84,865.30, 127,125.15 and 43,335.70

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Solution

The fourth proportional to 84,865.30, 127,125.15 and 43,335.70 is: 64,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,865.30 : 127,125.15 = 43,335.70 : x
  2. Step 2: Convert to fraction form
    84,865.30/127,125.15 = 43,335.70/x
  3. Step 3: Cross multiply
    84,865.30x = 127,125.15 × 43,335.70
  4. Step 4: Simplify right side
    84,865.30x = 5,509,057,362.86
  5. Step 5: Solve for x
    x = 5,509,057,362.86/84,865.30
  6. Step 6: Final answer
    x = 64,915.31

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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.