Home / 74,373.98-102,636.18-40,382.46

Finding the Fourth Proportional to 74,373.98, 102,636.18 and 40,382.46

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Solution

The fourth proportional to 74,373.98, 102,636.18 and 40,382.46 is: 55,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,373.98 : 102,636.18 = 40,382.46 : x
  2. Step 2: Convert to fraction form
    74,373.98/102,636.18 = 40,382.46/x
  3. Step 3: Cross multiply
    74,373.98x = 102,636.18 × 40,382.46
  4. Step 4: Simplify right side
    74,373.98x = 4,144,701,433.40
  5. Step 5: Solve for x
    x = 4,144,701,433.40/74,373.98
  6. Step 6: Final answer
    x = 55,727.85

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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.