Home / 42,113.72-63,170.64-10,949

Finding the Fourth Proportional to 42,113.72, 63,170.64 and 10,949

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Solution

The fourth proportional to 42,113.72, 63,170.64 and 10,949 is: 16,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,113.72 : 63,170.64 = 10,949 : x
  2. Step 2: Convert to fraction form
    42,113.72/63,170.64 = 10,949/x
  3. Step 3: Cross multiply
    42,113.72x = 63,170.64 × 10,949
  4. Step 4: Simplify right side
    42,113.72x = 691,655,337.36
  5. Step 5: Solve for x
    x = 691,655,337.36/42,113.72
  6. Step 6: Final answer
    x = 16,423.52

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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.