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Finding the Fourth Proportional to 75,417.54, 113,125.90 and 18,490.74

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Solution

The fourth proportional to 75,417.54, 113,125.90 and 18,490.74 is: 27,736.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,417.54 : 113,125.90 = 18,490.74 : x
  2. Step 2: Convert to fraction form
    75,417.54/113,125.90 = 18,490.74/x
  3. Step 3: Cross multiply
    75,417.54x = 113,125.90 × 18,490.74
  4. Step 4: Simplify right side
    75,417.54x = 2,091,781,604.17
  5. Step 5: Solve for x
    x = 2,091,781,604.17/75,417.54
  6. Step 6: Final answer
    x = 27,736.01

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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.