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Finding the Fourth Proportional to 73,974.84, 102,085.14 and 40,440.84

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Solution

The fourth proportional to 73,974.84, 102,085.14 and 40,440.84 is: 55,808.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,974.84 : 102,085.14 = 40,440.84 : x
  2. Step 2: Convert to fraction form
    73,974.84/102,085.14 = 40,440.84/x
  3. Step 3: Cross multiply
    73,974.84x = 102,085.14 × 40,440.84
  4. Step 4: Simplify right side
    73,974.84x = 4,128,408,813.12
  5. Step 5: Solve for x
    x = 4,128,408,813.12/73,974.84
  6. Step 6: Final answer
    x = 55,808.28

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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.