Home / 78,829.18-108,783.67-43,018.41

Finding the Fourth Proportional to 78,829.18, 108,783.67 and 43,018.41

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Solution

The fourth proportional to 78,829.18, 108,783.67 and 43,018.41 is: 59,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,829.18 : 108,783.67 = 43,018.41 : x
  2. Step 2: Convert to fraction form
    78,829.18/108,783.67 = 43,018.41/x
  3. Step 3: Cross multiply
    78,829.18x = 108,783.67 × 43,018.41
  4. Step 4: Simplify right side
    78,829.18x = 4,679,700,517.36
  5. Step 5: Solve for x
    x = 4,679,700,517.36/78,829.18
  6. Step 6: Final answer
    x = 59,365.08

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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.