Home / 91,279.11-136,934.23-40,696.49

Finding the Fourth Proportional to 91,279.11, 136,934.23 and 40,696.49

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Solution

The fourth proportional to 91,279.11, 136,934.23 and 40,696.49 is: 61,051.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,279.11 : 136,934.23 = 40,696.49 : x
  2. Step 2: Convert to fraction form
    91,279.11/136,934.23 = 40,696.49/x
  3. Step 3: Cross multiply
    91,279.11x = 136,934.23 × 40,696.49
  4. Step 4: Simplify right side
    91,279.11x = 5,572,742,521.85
  5. Step 5: Solve for x
    x = 5,572,742,521.85/91,279.11
  6. Step 6: Final answer
    x = 61,051.67

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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.