Home / 78,412.23-108,173.61-52,910.19

Finding the Fourth Proportional to 78,412.23, 108,173.61 and 52,910.19

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Solution

The fourth proportional to 78,412.23, 108,173.61 and 52,910.19 is: 72,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,412.23 : 108,173.61 = 52,910.19 : x
  2. Step 2: Convert to fraction form
    78,412.23/108,173.61 = 52,910.19/x
  3. Step 3: Cross multiply
    78,412.23x = 108,173.61 × 52,910.19
  4. Step 4: Simplify right side
    78,412.23x = 5,723,486,258.09
  5. Step 5: Solve for x
    x = 5,723,486,258.09/78,412.23
  6. Step 6: Final answer
    x = 72,992.26

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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.