Home / 74,089.80-102,243.12-40,097.58

Finding the Fourth Proportional to 74,089.80, 102,243.12 and 40,097.58

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Solution

The fourth proportional to 74,089.80, 102,243.12 and 40,097.58 is: 55,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,089.80 : 102,243.12 = 40,097.58 : x
  2. Step 2: Convert to fraction form
    74,089.80/102,243.12 = 40,097.58/x
  3. Step 3: Cross multiply
    74,089.80x = 102,243.12 × 40,097.58
  4. Step 4: Simplify right side
    74,089.80x = 4,099,701,683.65
  5. Step 5: Solve for x
    x = 4,099,701,683.65/74,089.80
  6. Step 6: Final answer
    x = 55,334.23

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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.