Home / 76,686.66-105,824.98-43,146.18

Finding the Fourth Proportional to 76,686.66, 105,824.98 and 43,146.18

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Solution

The fourth proportional to 76,686.66, 105,824.98 and 43,146.18 is: 59,540.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,686.66 : 105,824.98 = 43,146.18 : x
  2. Step 2: Convert to fraction form
    76,686.66/105,824.98 = 43,146.18/x
  3. Step 3: Cross multiply
    76,686.66x = 105,824.98 × 43,146.18
  4. Step 4: Simplify right side
    76,686.66x = 4,565,943,635.58
  5. Step 5: Solve for x
    x = 4,565,943,635.58/76,686.66
  6. Step 6: Final answer
    x = 59,540.26

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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.