Home / 42,448.05-63,663.84-40,340.70

Finding the Fourth Proportional to 42,448.05, 63,663.84 and 40,340.70

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Solution

The fourth proportional to 42,448.05, 63,663.84 and 40,340.70 is: 60,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,448.05 : 63,663.84 = 40,340.70 : x
  2. Step 2: Convert to fraction form
    42,448.05/63,663.84 = 40,340.70/x
  3. Step 3: Cross multiply
    42,448.05x = 63,663.84 × 40,340.70
  4. Step 4: Simplify right side
    42,448.05x = 2,568,243,870.29
  5. Step 5: Solve for x
    x = 2,568,243,870.29/42,448.05
  6. Step 6: Final answer
    x = 60,503.22

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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.