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Finding the Fourth Proportional to 86,498.96, 119,365.85 and 50,712.80

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Solution

The fourth proportional to 86,498.96, 119,365.85 and 50,712.80 is: 69,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,498.96 : 119,365.85 = 50,712.80 : x
  2. Step 2: Convert to fraction form
    86,498.96/119,365.85 = 50,712.80/x
  3. Step 3: Cross multiply
    86,498.96x = 119,365.85 × 50,712.80
  4. Step 4: Simplify right side
    86,498.96x = 6,053,376,224.32
  5. Step 5: Solve for x
    x = 6,053,376,224.32/86,498.96
  6. Step 6: Final answer
    x = 69,982.07

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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.