Home / 74,200.16-102,396.80-40,667.36

Finding the Fourth Proportional to 74,200.16, 102,396.80 and 40,667.36

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Solution

The fourth proportional to 74,200.16, 102,396.80 and 40,667.36 is: 56,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,200.16 : 102,396.80 = 40,667.36 : x
  2. Step 2: Convert to fraction form
    74,200.16/102,396.80 = 40,667.36/x
  3. Step 3: Cross multiply
    74,200.16x = 102,396.80 × 40,667.36
  4. Step 4: Simplify right side
    74,200.16x = 4,164,207,528.45
  5. Step 5: Solve for x
    x = 4,164,207,528.45/74,200.16
  6. Step 6: Final answer
    x = 56,121.27

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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.