Home / 77,333.08-115,981.48-43,613.64

Finding the Fourth Proportional to 77,333.08, 115,981.48 and 43,613.64

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Solution

The fourth proportional to 77,333.08, 115,981.48 and 43,613.64 is: 65,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,333.08 : 115,981.48 = 43,613.64 : x
  2. Step 2: Convert to fraction form
    77,333.08/115,981.48 = 43,613.64/x
  3. Step 3: Cross multiply
    77,333.08x = 115,981.48 × 43,613.64
  4. Step 4: Simplify right side
    77,333.08x = 5,058,374,515.39
  5. Step 5: Solve for x
    x = 5,058,374,515.39/77,333.08
  6. Step 6: Final answer
    x = 65,410.23

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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.