Home / 74,972.82-103,460.56-40,981.39

Finding the Fourth Proportional to 74,972.82, 103,460.56 and 40,981.39

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Solution

The fourth proportional to 74,972.82, 103,460.56 and 40,981.39 is: 56,553.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.82 : 103,460.56 = 40,981.39 : x
  2. Step 2: Convert to fraction form
    74,972.82/103,460.56 = 40,981.39/x
  3. Step 3: Cross multiply
    74,972.82x = 103,460.56 × 40,981.39
  4. Step 4: Simplify right side
    74,972.82x = 4,239,957,558.98
  5. Step 5: Solve for x
    x = 4,239,957,558.98/74,972.82
  6. Step 6: Final answer
    x = 56,553.26

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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.