Home / 74,498.14-102,809.43-40,508.89

Finding the Fourth Proportional to 74,498.14, 102,809.43 and 40,508.89

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Solution

The fourth proportional to 74,498.14, 102,809.43 and 40,508.89 is: 55,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.14 : 102,809.43 = 40,508.89 : x
  2. Step 2: Convert to fraction form
    74,498.14/102,809.43 = 40,508.89/x
  3. Step 3: Cross multiply
    74,498.14x = 102,809.43 × 40,508.89
  4. Step 4: Simplify right side
    74,498.14x = 4,164,695,890.83
  5. Step 5: Solve for x
    x = 4,164,695,890.83/74,498.14
  6. Step 6: Final answer
    x = 55,903.35

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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.