Home / 74,161.50-102,345.03-40,629.66

Finding the Fourth Proportional to 74,161.50, 102,345.03 and 40,629.66

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Solution

The fourth proportional to 74,161.50, 102,345.03 and 40,629.66 is: 56,070.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,161.50 : 102,345.03 = 40,629.66 : x
  2. Step 2: Convert to fraction form
    74,161.50/102,345.03 = 40,629.66/x
  3. Step 3: Cross multiply
    74,161.50x = 102,345.03 × 40,629.66
  4. Step 4: Simplify right side
    74,161.50x = 4,158,243,771.59
  5. Step 5: Solve for x
    x = 4,158,243,771.59/74,161.50
  6. Step 6: Final answer
    x = 56,070.11

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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.