Home / 61,346.77-84,636.50-40,138.34

Finding the Fourth Proportional to 61,346.77, 84,636.50 and 40,138.34

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Solution

The fourth proportional to 61,346.77, 84,636.50 and 40,138.34 is: 55,376.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,346.77 : 84,636.50 = 40,138.34 : x
  2. Step 2: Convert to fraction form
    61,346.77/84,636.50 = 40,138.34/x
  3. Step 3: Cross multiply
    61,346.77x = 84,636.50 × 40,138.34
  4. Step 4: Simplify right side
    61,346.77x = 3,397,167,989.54
  5. Step 5: Solve for x
    x = 3,397,167,989.54/61,346.77
  6. Step 6: Final answer
    x = 55,376.48

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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.