Home / 85,391.17-117,841.70-47,150.62

Finding the Fourth Proportional to 85,391.17, 117,841.70 and 47,150.62

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Solution

The fourth proportional to 85,391.17, 117,841.70 and 47,150.62 is: 65,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,391.17 : 117,841.70 = 47,150.62 : x
  2. Step 2: Convert to fraction form
    85,391.17/117,841.70 = 47,150.62/x
  3. Step 3: Cross multiply
    85,391.17x = 117,841.70 × 47,150.62
  4. Step 4: Simplify right side
    85,391.17x = 5,556,309,216.85
  5. Step 5: Solve for x
    x = 5,556,309,216.85/85,391.17
  6. Step 6: Final answer
    x = 65,068.90

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1.5x scale

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.