Home / 74,103.41-102,261.75-42,272.84

Finding the Fourth Proportional to 74,103.41, 102,261.75 and 42,272.84

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Solution

The fourth proportional to 74,103.41, 102,261.75 and 42,272.84 is: 58,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,103.41 : 102,261.75 = 42,272.84 : x
  2. Step 2: Convert to fraction form
    74,103.41/102,261.75 = 42,272.84/x
  3. Step 3: Cross multiply
    74,103.41x = 102,261.75 × 42,272.84
  4. Step 4: Simplify right side
    74,103.41x = 4,322,894,595.87
  5. Step 5: Solve for x
    x = 4,322,894,595.87/74,103.41
  6. Step 6: Final answer
    x = 58,335.97

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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.