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Finding the Fourth Proportional to 85,754, 118,340.52 and 48,040.40

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Solution

The fourth proportional to 85,754, 118,340.52 and 48,040.40 is: 66,295.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,754 : 118,340.52 = 48,040.40 : x
  2. Step 2: Convert to fraction form
    85,754/118,340.52 = 48,040.40/x
  3. Step 3: Cross multiply
    85,754x = 118,340.52 × 48,040.40
  4. Step 4: Simplify right side
    85,754x = 5,685,125,917.01
  5. Step 5: Solve for x
    x = 5,685,125,917.01/85,754
  6. Step 6: Final answer
    x = 66,295.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.