Home / 74,919.32-103,387.38-40,926.93

Finding the Fourth Proportional to 74,919.32, 103,387.38 and 40,926.93

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Solution

The fourth proportional to 74,919.32, 103,387.38 and 40,926.93 is: 56,478.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.32 : 103,387.38 = 40,926.93 : x
  2. Step 2: Convert to fraction form
    74,919.32/103,387.38 = 40,926.93/x
  3. Step 3: Cross multiply
    74,919.32x = 103,387.38 × 40,926.93
  4. Step 4: Simplify right side
    74,919.32x = 4,231,328,064.14
  5. Step 5: Solve for x
    x = 4,231,328,064.14/74,919.32
  6. Step 6: Final answer
    x = 56,478.47

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1.5x scale

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.