Home / 74,821.39-103,255.71-40,832.07

Finding the Fourth Proportional to 74,821.39, 103,255.71 and 40,832.07

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Solution

The fourth proportional to 74,821.39, 103,255.71 and 40,832.07 is: 56,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,821.39 : 103,255.71 = 40,832.07 : x
  2. Step 2: Convert to fraction form
    74,821.39/103,255.71 = 40,832.07/x
  3. Step 3: Cross multiply
    74,821.39x = 103,255.71 × 40,832.07
  4. Step 4: Simplify right side
    74,821.39x = 4,216,144,031.89
  5. Step 5: Solve for x
    x = 4,216,144,031.89/74,821.39
  6. Step 6: Final answer
    x = 56,349.45

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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.