Home / 70,442.32-97,212.82-38,611.20

Finding the Fourth Proportional to 70,442.32, 97,212.82 and 38,611.20

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Solution

The fourth proportional to 70,442.32, 97,212.82 and 38,611.20 is: 53,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,442.32 : 97,212.82 = 38,611.20 : x
  2. Step 2: Convert to fraction form
    70,442.32/97,212.82 = 38,611.20/x
  3. Step 3: Cross multiply
    70,442.32x = 97,212.82 × 38,611.20
  4. Step 4: Simplify right side
    70,442.32x = 3,753,503,635.58
  5. Step 5: Solve for x
    x = 3,753,503,635.58/70,442.32
  6. Step 6: Final answer
    x = 53,284.78

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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.