Home / 86,078.52-118,781.10-52,538.04

Finding the Fourth Proportional to 86,078.52, 118,781.10 and 52,538.04

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Solution

The fourth proportional to 86,078.52, 118,781.10 and 52,538.04 is: 72,498.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,078.52 : 118,781.10 = 52,538.04 : x
  2. Step 2: Convert to fraction form
    86,078.52/118,781.10 = 52,538.04/x
  3. Step 3: Cross multiply
    86,078.52x = 118,781.10 × 52,538.04
  4. Step 4: Simplify right side
    86,078.52x = 6,240,526,183.04
  5. Step 5: Solve for x
    x = 6,240,526,183.04/86,078.52
  6. Step 6: Final answer
    x = 72,498.07

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1.5x scale

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.