Home / 77,781.82-107,346.94-47,587.22

Finding the Fourth Proportional to 77,781.82, 107,346.94 and 47,587.22

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Solution

The fourth proportional to 77,781.82, 107,346.94 and 47,587.22 is: 65,675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,781.82 : 107,346.94 = 47,587.22 : x
  2. Step 2: Convert to fraction form
    77,781.82/107,346.94 = 47,587.22/x
  3. Step 3: Cross multiply
    77,781.82x = 107,346.94 × 47,587.22
  4. Step 4: Simplify right side
    77,781.82x = 5,108,341,794.40
  5. Step 5: Solve for x
    x = 5,108,341,794.40/77,781.82
  6. Step 6: Final answer
    x = 65,675.27

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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.