Home / 379,428.59-569,129.31-95,121.50

Finding the Fourth Proportional to 379,428.59, 569,129.31 and 95,121.50

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Solution

The fourth proportional to 379,428.59, 569,129.31 and 95,121.50 is: 142,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,428.59 : 569,129.31 = 95,121.50 : x
  2. Step 2: Convert to fraction form
    379,428.59/569,129.31 = 95,121.50/x
  3. Step 3: Cross multiply
    379,428.59x = 569,129.31 × 95,121.50
  4. Step 4: Simplify right side
    379,428.59x = 54,136,430,815.52
  5. Step 5: Solve for x
    x = 54,136,430,815.52/379,428.59
  6. Step 6: Final answer
    x = 142,678.84

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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.