Home / 74,451.19-102,743.33-40,459.69

Finding the Fourth Proportional to 74,451.19, 102,743.33 and 40,459.69

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Solution

The fourth proportional to 74,451.19, 102,743.33 and 40,459.69 is: 55,834.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,451.19 : 102,743.33 = 40,459.69 : x
  2. Step 2: Convert to fraction form
    74,451.19/102,743.33 = 40,459.69/x
  3. Step 3: Cross multiply
    74,451.19x = 102,743.33 × 40,459.69
  4. Step 4: Simplify right side
    74,451.19x = 4,156,963,281.37
  5. Step 5: Solve for x
    x = 4,156,963,281.37/74,451.19
  6. Step 6: Final answer
    x = 55,834.75

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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.