Home / 74,330.66-102,576.38-40,339.15

Finding the Fourth Proportional to 74,330.66, 102,576.38 and 40,339.15

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Solution

The fourth proportional to 74,330.66, 102,576.38 and 40,339.15 is: 55,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,330.66 : 102,576.38 = 40,339.15 : x
  2. Step 2: Convert to fraction form
    74,330.66/102,576.38 = 40,339.15/x
  3. Step 3: Cross multiply
    74,330.66x = 102,576.38 × 40,339.15
  4. Step 4: Simplify right side
    74,330.66x = 4,137,843,521.14
  5. Step 5: Solve for x
    x = 4,137,843,521.14/74,330.66
  6. Step 6: Final answer
    x = 55,668.06

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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.