Home / 74,917.90-103,387.86-40,926.15

Finding the Fourth Proportional to 74,917.90, 103,387.86 and 40,926.15

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Solution

The fourth proportional to 74,917.90, 103,387.86 and 40,926.15 is: 56,478.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,917.90 : 103,387.86 = 40,926.15 : x
  2. Step 2: Convert to fraction form
    74,917.90/103,387.86 = 40,926.15/x
  3. Step 3: Cross multiply
    74,917.90x = 103,387.86 × 40,926.15
  4. Step 4: Simplify right side
    74,917.90x = 4,231,267,066.54
  5. Step 5: Solve for x
    x = 4,231,267,066.54/74,917.90
  6. Step 6: Final answer
    x = 56,478.72

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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.