Home / 90,756.57-136,045.98-50,795.07

Finding the Fourth Proportional to 90,756.57, 136,045.98 and 50,795.07

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Solution

The fourth proportional to 90,756.57, 136,045.98 and 50,795.07 is: 76,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,756.57 : 136,045.98 = 50,795.07 : x
  2. Step 2: Convert to fraction form
    90,756.57/136,045.98 = 50,795.07/x
  3. Step 3: Cross multiply
    90,756.57x = 136,045.98 × 50,795.07
  4. Step 4: Simplify right side
    90,756.57x = 6,910,465,077.32
  5. Step 5: Solve for x
    x = 6,910,465,077.32/90,756.57
  6. Step 6: Final answer
    x = 76,142.86

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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.