Home / 379,428.47-569,129.12-95,121.37

Finding the Fourth Proportional to 379,428.47, 569,129.12 and 95,121.37

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Solution

The fourth proportional to 379,428.47, 569,129.12 and 95,121.37 is: 142,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,428.47 : 569,129.12 = 95,121.37 : x
  2. Step 2: Convert to fraction form
    379,428.47/569,129.12 = 95,121.37/x
  3. Step 3: Cross multiply
    379,428.47x = 569,129.12 × 95,121.37
  4. Step 4: Simplify right side
    379,428.47x = 54,136,341,601.29
  5. Step 5: Solve for x
    x = 54,136,341,601.29/379,428.47
  6. Step 6: Final answer
    x = 142,678.65

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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.