Home / 85,922.50-118,572.78-47,687.81

Finding the Fourth Proportional to 85,922.50, 118,572.78 and 47,687.81

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Solution

The fourth proportional to 85,922.50, 118,572.78 and 47,687.81 is: 65,809.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,922.50 : 118,572.78 = 47,687.81 : x
  2. Step 2: Convert to fraction form
    85,922.50/118,572.78 = 47,687.81/x
  3. Step 3: Cross multiply
    85,922.50x = 118,572.78 × 47,687.81
  4. Step 4: Simplify right side
    85,922.50x = 5,654,476,203.81
  5. Step 5: Solve for x
    x = 5,654,476,203.81/85,922.50
  6. Step 6: Final answer
    x = 65,809.03

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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.