Home / 74,230.76-102,439.78-40,696.36

Finding the Fourth Proportional to 74,230.76, 102,439.78 and 40,696.36

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Solution

The fourth proportional to 74,230.76, 102,439.78 and 40,696.36 is: 56,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,230.76 : 102,439.78 = 40,696.36 : x
  2. Step 2: Convert to fraction form
    74,230.76/102,439.78 = 40,696.36/x
  3. Step 3: Cross multiply
    74,230.76x = 102,439.78 × 40,696.36
  4. Step 4: Simplify right side
    74,230.76x = 4,168,926,165.20
  5. Step 5: Solve for x
    x = 4,168,926,165.20/74,230.76
  6. Step 6: Final answer
    x = 56,161.71

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1.5x scale

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.