Home / 66,364.11-99,488.93-31,279.23

Finding the Fourth Proportional to 66,364.11, 99,488.93 and 31,279.23

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Solution

The fourth proportional to 66,364.11, 99,488.93 and 31,279.23 is: 46,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,364.11 : 99,488.93 = 31,279.23 : x
  2. Step 2: Convert to fraction form
    66,364.11/99,488.93 = 31,279.23/x
  3. Step 3: Cross multiply
    66,364.11x = 99,488.93 × 31,279.23
  4. Step 4: Simplify right side
    66,364.11x = 3,111,936,967.53
  5. Step 5: Solve for x
    x = 3,111,936,967.53/66,364.11
  6. Step 6: Final answer
    x = 46,891.87

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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.