Home / 85,212.30-127,818.45-60,329.10

Finding the Fourth Proportional to 85,212.30, 127,818.45 and 60,329.10

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Solution

The fourth proportional to 85,212.30, 127,818.45 and 60,329.10 is: 90,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212.30 : 127,818.45 = 60,329.10 : x
  2. Step 2: Convert to fraction form
    85,212.30/127,818.45 = 60,329.10/x
  3. Step 3: Cross multiply
    85,212.30x = 127,818.45 × 60,329.10
  4. Step 4: Simplify right side
    85,212.30x = 7,711,172,051.90
  5. Step 5: Solve for x
    x = 7,711,172,051.90/85,212.30
  6. Step 6: Final answer
    x = 90,493.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.