Home / 78,265.96-117,196.98-51,888.04

Finding the Fourth Proportional to 78,265.96, 117,196.98 and 51,888.04

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Solution

The fourth proportional to 78,265.96, 117,196.98 and 51,888.04 is: 77,698.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,265.96 : 117,196.98 = 51,888.04 : x
  2. Step 2: Convert to fraction form
    78,265.96/117,196.98 = 51,888.04/x
  3. Step 3: Cross multiply
    78,265.96x = 117,196.98 × 51,888.04
  4. Step 4: Simplify right side
    78,265.96x = 6,081,121,586.12
  5. Step 5: Solve for x
    x = 6,081,121,586.12/78,265.96
  6. Step 6: Final answer
    x = 77,698.17

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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.