Home / 85,026.72-127,364.40-49,860.48

Finding the Fourth Proportional to 85,026.72, 127,364.40 and 49,860.48

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Solution

The fourth proportional to 85,026.72, 127,364.40 and 49,860.48 is: 74,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,026.72 : 127,364.40 = 49,860.48 : x
  2. Step 2: Convert to fraction form
    85,026.72/127,364.40 = 49,860.48/x
  3. Step 3: Cross multiply
    85,026.72x = 127,364.40 × 49,860.48
  4. Step 4: Simplify right side
    85,026.72x = 6,350,450,118.91
  5. Step 5: Solve for x
    x = 6,350,450,118.91/85,026.72
  6. Step 6: Final answer
    x = 74,687.70

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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.