Home / 42,129.45-63,194.18-10,964.70

Finding the Fourth Proportional to 42,129.45, 63,194.18 and 10,964.70

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Solution

The fourth proportional to 42,129.45, 63,194.18 and 10,964.70 is: 16,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,129.45 : 63,194.18 = 10,964.70 : x
  2. Step 2: Convert to fraction form
    42,129.45/63,194.18 = 10,964.70/x
  3. Step 3: Cross multiply
    42,129.45x = 63,194.18 × 10,964.70
  4. Step 4: Simplify right side
    42,129.45x = 692,905,170.62
  5. Step 5: Solve for x
    x = 692,905,170.62/42,129.45
  6. Step 6: Final answer
    x = 16,447.05

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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.