Home / 85,595.89-118,138.54-57,350.65

Finding the Fourth Proportional to 85,595.89, 118,138.54 and 57,350.65

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Solution

The fourth proportional to 85,595.89, 118,138.54 and 57,350.65 is: 79,154.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,595.89 : 118,138.54 = 57,350.65 : x
  2. Step 2: Convert to fraction form
    85,595.89/118,138.54 = 57,350.65/x
  3. Step 3: Cross multiply
    85,595.89x = 118,138.54 × 57,350.65
  4. Step 4: Simplify right side
    85,595.89x = 6,775,321,468.36
  5. Step 5: Solve for x
    x = 6,775,321,468.36/85,595.89
  6. Step 6: Final answer
    x = 79,154.76

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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.