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Finding the Fourth Proportional to 74,924.84, 112,394.78 and 21,618.12

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Solution

The fourth proportional to 74,924.84, 112,394.78 and 21,618.12 is: 32,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,924.84 : 112,394.78 = 21,618.12 : x
  2. Step 2: Convert to fraction form
    74,924.84/112,394.78 = 21,618.12/x
  3. Step 3: Cross multiply
    74,924.84x = 112,394.78 × 21,618.12
  4. Step 4: Simplify right side
    74,924.84x = 2,429,763,733.32
  5. Step 5: Solve for x
    x = 2,429,763,733.32/74,924.84
  6. Step 6: Final answer
    x = 32,429.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.