Home / 78,863.46-118,175.50-57,817.52

Finding the Fourth Proportional to 78,863.46, 118,175.50 and 57,817.52

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Solution

The fourth proportional to 78,863.46, 118,175.50 and 57,817.52 is: 86,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,863.46 : 118,175.50 = 57,817.52 : x
  2. Step 2: Convert to fraction form
    78,863.46/118,175.50 = 57,817.52/x
  3. Step 3: Cross multiply
    78,863.46x = 118,175.50 × 57,817.52
  4. Step 4: Simplify right side
    78,863.46x = 6,832,613,599.34
  5. Step 5: Solve for x
    x = 6,832,613,599.34/78,863.46
  6. Step 6: Final answer
    x = 86,638.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.