Home / 74,200.77-102,396.83-40,209.39

Finding the Fourth Proportional to 74,200.77, 102,396.83 and 40,209.39

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Solution

The fourth proportional to 74,200.77, 102,396.83 and 40,209.39 is: 55,488.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,200.77 : 102,396.83 = 40,209.39 : x
  2. Step 2: Convert to fraction form
    74,200.77/102,396.83 = 40,209.39/x
  3. Step 3: Cross multiply
    74,200.77x = 102,396.83 × 40,209.39
  4. Step 4: Simplify right side
    74,200.77x = 4,117,313,871.19
  5. Step 5: Solve for x
    x = 4,117,313,871.19/74,200.77
  6. Step 6: Final answer
    x = 55,488.83

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1.5x scale

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.