Home / 74,272.87-102,496.61-40,281.35

Finding the Fourth Proportional to 74,272.87, 102,496.61 and 40,281.35

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Solution

The fourth proportional to 74,272.87, 102,496.61 and 40,281.35 is: 55,588.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.87 : 102,496.61 = 40,281.35 : x
  2. Step 2: Convert to fraction form
    74,272.87/102,496.61 = 40,281.35/x
  3. Step 3: Cross multiply
    74,272.87x = 102,496.61 × 40,281.35
  4. Step 4: Simplify right side
    74,272.87x = 4,128,701,409.44
  5. Step 5: Solve for x
    x = 4,128,701,409.44/74,272.87
  6. Step 6: Final answer
    x = 55,588.29

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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.