Home / 74,986.19-103,479.18-40,994.93

Finding the Fourth Proportional to 74,986.19, 103,479.18 and 40,994.93

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Solution

The fourth proportional to 74,986.19, 103,479.18 and 40,994.93 is: 56,572.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,986.19 : 103,479.18 = 40,994.93 : x
  2. Step 2: Convert to fraction form
    74,986.19/103,479.18 = 40,994.93/x
  3. Step 3: Cross multiply
    74,986.19x = 103,479.18 × 40,994.93
  4. Step 4: Simplify right side
    74,986.19x = 4,242,121,740.56
  5. Step 5: Solve for x
    x = 4,242,121,740.56/74,986.19
  6. Step 6: Final answer
    x = 56,572.04

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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.