Home / 85,585.26-118,105.45-47,343.81

Finding the Fourth Proportional to 85,585.26, 118,105.45 and 47,343.81

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Solution

The fourth proportional to 85,585.26, 118,105.45 and 47,343.81 is: 65,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,585.26 : 118,105.45 = 47,343.81 : x
  2. Step 2: Convert to fraction form
    85,585.26/118,105.45 = 47,343.81/x
  3. Step 3: Cross multiply
    85,585.26x = 118,105.45 × 47,343.81
  4. Step 4: Simplify right side
    85,585.26x = 5,591,561,984.76
  5. Step 5: Solve for x
    x = 5,591,561,984.76/85,585.26
  6. Step 6: Final answer
    x = 65,333.24

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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.