Home / 42,095.70-63,143.01-12,110.72

Finding the Fourth Proportional to 42,095.70, 63,143.01 and 12,110.72

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Solution

The fourth proportional to 42,095.70, 63,143.01 and 12,110.72 is: 18,165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,095.70 : 63,143.01 = 12,110.72 : x
  2. Step 2: Convert to fraction form
    42,095.70/63,143.01 = 12,110.72/x
  3. Step 3: Cross multiply
    42,095.70x = 63,143.01 × 12,110.72
  4. Step 4: Simplify right side
    42,095.70x = 764,706,998.35
  5. Step 5: Solve for x
    x = 764,706,998.35/42,095.70
  6. Step 6: Final answer
    x = 18,165.92

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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.