Home / 74,971.05-103,462.82-40,981.80

Finding the Fourth Proportional to 74,971.05, 103,462.82 and 40,981.80

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Solution

The fourth proportional to 74,971.05, 103,462.82 and 40,981.80 is: 56,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,971.05 : 103,462.82 = 40,981.80 : x
  2. Step 2: Convert to fraction form
    74,971.05/103,462.82 = 40,981.80/x
  3. Step 3: Cross multiply
    74,971.05x = 103,462.82 × 40,981.80
  4. Step 4: Simplify right side
    74,971.05x = 4,240,092,391.77
  5. Step 5: Solve for x
    x = 4,240,092,391.77/74,971.05
  6. Step 6: Final answer
    x = 56,556.40

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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.