Home / 74,263.38-102,488.16-40,729.38

Finding the Fourth Proportional to 74,263.38, 102,488.16 and 40,729.38

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Solution

The fourth proportional to 74,263.38, 102,488.16 and 40,729.38 is: 56,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,263.38 : 102,488.16 = 40,729.38 : x
  2. Step 2: Convert to fraction form
    74,263.38/102,488.16 = 40,729.38/x
  3. Step 3: Cross multiply
    74,263.38x = 102,488.16 × 40,729.38
  4. Step 4: Simplify right side
    74,263.38x = 4,174,279,214.14
  5. Step 5: Solve for x
    x = 4,174,279,214.14/74,263.38
  6. Step 6: Final answer
    x = 56,209.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.