Home / 78,230.10-108,016.74-48,056.79

Finding the Fourth Proportional to 78,230.10, 108,016.74 and 48,056.79

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Solution

The fourth proportional to 78,230.10, 108,016.74 and 48,056.79 is: 66,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,230.10 : 108,016.74 = 48,056.79 : x
  2. Step 2: Convert to fraction form
    78,230.10/108,016.74 = 48,056.79/x
  3. Step 3: Cross multiply
    78,230.10x = 108,016.74 × 48,056.79
  4. Step 4: Simplify right side
    78,230.10x = 5,190,937,790.66
  5. Step 5: Solve for x
    x = 5,190,937,790.66/78,230.10
  6. Step 6: Final answer
    x = 66,354.74

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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.