Home / 85,806.43-118,342.66-60,396.91

Finding the Fourth Proportional to 85,806.43, 118,342.66 and 60,396.91

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Solution

The fourth proportional to 85,806.43, 118,342.66 and 60,396.91 is: 83,298.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,806.43 : 118,342.66 = 60,396.91 : x
  2. Step 2: Convert to fraction form
    85,806.43/118,342.66 = 60,396.91/x
  3. Step 3: Cross multiply
    85,806.43x = 118,342.66 × 60,396.91
  4. Step 4: Simplify right side
    85,806.43x = 7,147,530,985.18
  5. Step 5: Solve for x
    x = 7,147,530,985.18/85,806.43
  6. Step 6: Final answer
    x = 83,298.31

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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.