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Finding the Fourth Proportional to 74,961.68, 112,442.49 and 19,557.68

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Solution

The fourth proportional to 74,961.68, 112,442.49 and 19,557.68 is: 29,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,961.68 : 112,442.49 = 19,557.68 : x
  2. Step 2: Convert to fraction form
    74,961.68/112,442.49 = 19,557.68/x
  3. Step 3: Cross multiply
    74,961.68x = 112,442.49 × 19,557.68
  4. Step 4: Simplify right side
    74,961.68x = 2,199,113,675.61
  5. Step 5: Solve for x
    x = 2,199,113,675.61/74,961.68
  6. Step 6: Final answer
    x = 29,336.51

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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.