Home / 42,406.68-63,605.70-11,245.08

Finding the Fourth Proportional to 42,406.68, 63,605.70 and 11,245.08

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Solution

The fourth proportional to 42,406.68, 63,605.70 and 11,245.08 is: 16,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,406.68 : 63,605.70 = 11,245.08 : x
  2. Step 2: Convert to fraction form
    42,406.68/63,605.70 = 11,245.08/x
  3. Step 3: Cross multiply
    42,406.68x = 63,605.70 × 11,245.08
  4. Step 4: Simplify right side
    42,406.68x = 715,251,184.96
  5. Step 5: Solve for x
    x = 715,251,184.96/42,406.68
  6. Step 6: Final answer
    x = 16,866.47

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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.