Home / 85,870.26-118,553.49-68,037.30

Finding the Fourth Proportional to 85,870.26, 118,553.49 and 68,037.30

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Solution

The fourth proportional to 85,870.26, 118,553.49 and 68,037.30 is: 93,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,870.26 : 118,553.49 = 68,037.30 : x
  2. Step 2: Convert to fraction form
    85,870.26/118,553.49 = 68,037.30/x
  3. Step 3: Cross multiply
    85,870.26x = 118,553.49 × 68,037.30
  4. Step 4: Simplify right side
    85,870.26x = 8,066,059,365.18
  5. Step 5: Solve for x
    x = 8,066,059,365.18/85,870.26
  6. Step 6: Final answer
    x = 93,933.10

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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.