Home / 74,118.27-102,282.50-40,125.87

Finding the Fourth Proportional to 74,118.27, 102,282.50 and 40,125.87

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Solution

The fourth proportional to 74,118.27, 102,282.50 and 40,125.87 is: 55,373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,118.27 : 102,282.50 = 40,125.87 : x
  2. Step 2: Convert to fraction form
    74,118.27/102,282.50 = 40,125.87/x
  3. Step 3: Cross multiply
    74,118.27x = 102,282.50 × 40,125.87
  4. Step 4: Simplify right side
    74,118.27x = 4,104,174,029.05
  5. Step 5: Solve for x
    x = 4,104,174,029.05/74,118.27
  6. Step 6: Final answer
    x = 55,373.31

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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.