Home / 42,415.85-63,623.78-40,471.85

Finding the Fourth Proportional to 42,415.85, 63,623.78 and 40,471.85

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Solution

The fourth proportional to 42,415.85, 63,623.78 and 40,471.85 is: 60,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,415.85 : 63,623.78 = 40,471.85 : x
  2. Step 2: Convert to fraction form
    42,415.85/63,623.78 = 40,471.85/x
  3. Step 3: Cross multiply
    42,415.85x = 63,623.78 × 40,471.85
  4. Step 4: Simplify right side
    42,415.85x = 2,574,971,878.23
  5. Step 5: Solve for x
    x = 2,574,971,878.23/42,415.85
  6. Step 6: Final answer
    x = 60,707.78

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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.