Home / 74,201.16-102,398.18-40,668.36

Finding the Fourth Proportional to 74,201.16, 102,398.18 and 40,668.36

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Solution

The fourth proportional to 74,201.16, 102,398.18 and 40,668.36 is: 56,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,201.16 : 102,398.18 = 40,668.36 : x
  2. Step 2: Convert to fraction form
    74,201.16/102,398.18 = 40,668.36/x
  3. Step 3: Cross multiply
    74,201.16x = 102,398.18 × 40,668.36
  4. Step 4: Simplify right side
    74,201.16x = 4,164,366,047.58
  5. Step 5: Solve for x
    x = 4,164,366,047.58/74,201.16
  6. Step 6: Final answer
    x = 56,122.65

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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.