Home / 74,919.99-103,387.88-40,928.63

Finding the Fourth Proportional to 74,919.99, 103,387.88 and 40,928.63

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Solution

The fourth proportional to 74,919.99, 103,387.88 and 40,928.63 is: 56,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.99 : 103,387.88 = 40,928.63 : x
  2. Step 2: Convert to fraction form
    74,919.99/103,387.88 = 40,928.63/x
  3. Step 3: Cross multiply
    74,919.99x = 103,387.88 × 40,928.63
  4. Step 4: Simplify right side
    74,919.99x = 4,231,523,642.16
  5. Step 5: Solve for x
    x = 4,231,523,642.16/74,919.99
  6. Step 6: Final answer
    x = 56,480.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.