Home / 85,665.45-118,219.23-47,425.62

Finding the Fourth Proportional to 85,665.45, 118,219.23 and 47,425.62

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Solution

The fourth proportional to 85,665.45, 118,219.23 and 47,425.62 is: 65,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,665.45 : 118,219.23 = 47,425.62 : x
  2. Step 2: Convert to fraction form
    85,665.45/118,219.23 = 47,425.62/x
  3. Step 3: Cross multiply
    85,665.45x = 118,219.23 × 47,425.62
  4. Step 4: Simplify right side
    85,665.45x = 5,606,620,278.67
  5. Step 5: Solve for x
    x = 5,606,620,278.67/85,665.45
  6. Step 6: Final answer
    x = 65,447.86

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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.