Home / 42,095.28-63,144-19,919.04

Finding the Fourth Proportional to 42,095.28, 63,144 and 19,919.04

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Solution

The fourth proportional to 42,095.28, 63,144 and 19,919.04 is: 29,879.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,095.28 : 63,144 = 19,919.04 : x
  2. Step 2: Convert to fraction form
    42,095.28/63,144 = 19,919.04/x
  3. Step 3: Cross multiply
    42,095.28x = 63,144 × 19,919.04
  4. Step 4: Simplify right side
    42,095.28x = 1,257,767,861.76
  5. Step 5: Solve for x
    x = 1,257,767,861.76/42,095.28
  6. Step 6: Final answer
    x = 29,879.07

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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.