Home / 61,612.02-84,985.44-40,392.66

Finding the Fourth Proportional to 61,612.02, 84,985.44 and 40,392.66

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Solution

The fourth proportional to 61,612.02, 84,985.44 and 40,392.66 is: 55,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,612.02 : 84,985.44 = 40,392.66 : x
  2. Step 2: Convert to fraction form
    61,612.02/84,985.44 = 40,392.66/x
  3. Step 3: Cross multiply
    61,612.02x = 84,985.44 × 40,392.66
  4. Step 4: Simplify right side
    61,612.02x = 3,432,787,982.87
  5. Step 5: Solve for x
    x = 3,432,787,982.87/61,612.02
  6. Step 6: Final answer
    x = 55,716.21

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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.