Home / 74,335.29-102,582.75-40,343.77

Finding the Fourth Proportional to 74,335.29, 102,582.75 and 40,343.77

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Solution

The fourth proportional to 74,335.29, 102,582.75 and 40,343.77 is: 55,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,335.29 : 102,582.75 = 40,343.77 : x
  2. Step 2: Convert to fraction form
    74,335.29/102,582.75 = 40,343.77/x
  3. Step 3: Cross multiply
    74,335.29x = 102,582.75 × 40,343.77
  4. Step 4: Simplify right side
    74,335.29x = 4,138,574,871.97
  5. Step 5: Solve for x
    x = 4,138,574,871.97/74,335.29
  6. Step 6: Final answer
    x = 55,674.43

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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.