Home / 85,234.19-127,882.45-39,663.62

Finding the Fourth Proportional to 85,234.19, 127,882.45 and 39,663.62

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Solution

The fourth proportional to 85,234.19, 127,882.45 and 39,663.62 is: 59,509.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,234.19 : 127,882.45 = 39,663.62 : x
  2. Step 2: Convert to fraction form
    85,234.19/127,882.45 = 39,663.62/x
  3. Step 3: Cross multiply
    85,234.19x = 127,882.45 × 39,663.62
  4. Step 4: Simplify right side
    85,234.19x = 5,072,280,901.47
  5. Step 5: Solve for x
    x = 5,072,280,901.47/85,234.19
  6. Step 6: Final answer
    x = 59,509.93

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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.