Home / 61,130.78-84,331.42-40,722.33

Finding the Fourth Proportional to 61,130.78, 84,331.42 and 40,722.33

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Solution

The fourth proportional to 61,130.78, 84,331.42 and 40,722.33 is: 56,177.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,130.78 : 84,331.42 = 40,722.33 : x
  2. Step 2: Convert to fraction form
    61,130.78/84,331.42 = 40,722.33/x
  3. Step 3: Cross multiply
    61,130.78x = 84,331.42 × 40,722.33
  4. Step 4: Simplify right side
    61,130.78x = 3,434,171,707.89
  5. Step 5: Solve for x
    x = 3,434,171,707.89/61,130.78
  6. Step 6: Final answer
    x = 56,177.46

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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.