Home / 74,743.65-103,144.96-40,752.40

Finding the Fourth Proportional to 74,743.65, 103,144.96 and 40,752.40

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Solution

The fourth proportional to 74,743.65, 103,144.96 and 40,752.40 is: 56,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,743.65 : 103,144.96 = 40,752.40 : x
  2. Step 2: Convert to fraction form
    74,743.65/103,144.96 = 40,752.40/x
  3. Step 3: Cross multiply
    74,743.65x = 103,144.96 × 40,752.40
  4. Step 4: Simplify right side
    74,743.65x = 4,203,404,667.90
  5. Step 5: Solve for x
    x = 4,203,404,667.90/74,743.65
  6. Step 6: Final answer
    x = 56,237.62

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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.