Home / 85,609.54-118,134.75-47,876.50

Finding the Fourth Proportional to 85,609.54, 118,134.75 and 47,876.50

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Solution

The fourth proportional to 85,609.54, 118,134.75 and 47,876.50 is: 66,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,609.54 : 118,134.75 = 47,876.50 : x
  2. Step 2: Convert to fraction form
    85,609.54/118,134.75 = 47,876.50/x
  3. Step 3: Cross multiply
    85,609.54x = 118,134.75 × 47,876.50
  4. Step 4: Simplify right side
    85,609.54x = 5,655,878,358.38
  5. Step 5: Solve for x
    x = 5,655,878,358.38/85,609.54
  6. Step 6: Final answer
    x = 66,065.98

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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.