Home / 78,266.31-108,005.06-43,811.03

Finding the Fourth Proportional to 78,266.31, 108,005.06 and 43,811.03

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Solution

The fourth proportional to 78,266.31, 108,005.06 and 43,811.03 is: 60,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,266.31 : 108,005.06 = 43,811.03 : x
  2. Step 2: Convert to fraction form
    78,266.31/108,005.06 = 43,811.03/x
  3. Step 3: Cross multiply
    78,266.31x = 108,005.06 × 43,811.03
  4. Step 4: Simplify right side
    78,266.31x = 4,731,812,923.81
  5. Step 5: Solve for x
    x = 4,731,812,923.81/78,266.31
  6. Step 6: Final answer
    x = 60,457.85

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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.