Home / 74,678.40-103,054.32-41,143.68

Finding the Fourth Proportional to 74,678.40, 103,054.32 and 41,143.68

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Solution

The fourth proportional to 74,678.40, 103,054.32 and 41,143.68 is: 56,777.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,678.40 : 103,054.32 = 41,143.68 : x
  2. Step 2: Convert to fraction form
    74,678.40/103,054.32 = 41,143.68/x
  3. Step 3: Cross multiply
    74,678.40x = 103,054.32 × 41,143.68
  4. Step 4: Simplify right side
    74,678.40x = 4,240,033,964.70
  5. Step 5: Solve for x
    x = 4,240,033,964.70/74,678.40
  6. Step 6: Final answer
    x = 56,777.25

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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.