Home / 61,363.54-84,680.22-40,142.35

Finding the Fourth Proportional to 61,363.54, 84,680.22 and 40,142.35

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Solution

The fourth proportional to 61,363.54, 84,680.22 and 40,142.35 is: 55,395.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,363.54 : 84,680.22 = 40,142.35 : x
  2. Step 2: Convert to fraction form
    61,363.54/84,680.22 = 40,142.35/x
  3. Step 3: Cross multiply
    61,363.54x = 84,680.22 × 40,142.35
  4. Step 4: Simplify right side
    61,363.54x = 3,399,263,029.32
  5. Step 5: Solve for x
    x = 3,399,263,029.32/61,363.54
  6. Step 6: Final answer
    x = 55,395.48

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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.