Home / 74,918.40-103,388.55-40,926.65

Finding the Fourth Proportional to 74,918.40, 103,388.55 and 40,926.65

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Solution

The fourth proportional to 74,918.40, 103,388.55 and 40,926.65 is: 56,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,918.40 : 103,388.55 = 40,926.65 : x
  2. Step 2: Convert to fraction form
    74,918.40/103,388.55 = 40,926.65/x
  3. Step 3: Cross multiply
    74,918.40x = 103,388.55 × 40,926.65
  4. Step 4: Simplify right side
    74,918.40x = 4,231,346,482.91
  5. Step 5: Solve for x
    x = 4,231,346,482.91/74,918.40
  6. Step 6: Final answer
    x = 56,479.40

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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.