Home / 74,416.57-102,696.71-40,425.05

Finding the Fourth Proportional to 74,416.57, 102,696.71 and 40,425.05

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Solution

The fourth proportional to 74,416.57, 102,696.71 and 40,425.05 is: 55,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,416.57 : 102,696.71 = 40,425.05 : x
  2. Step 2: Convert to fraction form
    74,416.57/102,696.71 = 40,425.05/x
  3. Step 3: Cross multiply
    74,416.57x = 102,696.71 × 40,425.05
  4. Step 4: Simplify right side
    74,416.57x = 4,151,519,636.59
  5. Step 5: Solve for x
    x = 4,151,519,636.59/74,416.57
  6. Step 6: Final answer
    x = 55,787.57

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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.