Home / 89,974.84-135,044.14-47,890.24

Finding the Fourth Proportional to 89,974.84, 135,044.14 and 47,890.24

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Solution

The fourth proportional to 89,974.84, 135,044.14 and 47,890.24 is: 71,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,974.84 : 135,044.14 = 47,890.24 : x
  2. Step 2: Convert to fraction form
    89,974.84/135,044.14 = 47,890.24/x
  3. Step 3: Cross multiply
    89,974.84x = 135,044.14 × 47,890.24
  4. Step 4: Simplify right side
    89,974.84x = 6,467,296,275.19
  5. Step 5: Solve for x
    x = 6,467,296,275.19/89,974.84
  6. Step 6: Final answer
    x = 71,878.94

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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.