Home / 77,286.76-106,646.98-43,290.60

Finding the Fourth Proportional to 77,286.76, 106,646.98 and 43,290.60

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Solution

The fourth proportional to 77,286.76, 106,646.98 and 43,290.60 is: 59,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,286.76 : 106,646.98 = 43,290.60 : x
  2. Step 2: Convert to fraction form
    77,286.76/106,646.98 = 43,290.60/x
  3. Step 3: Cross multiply
    77,286.76x = 106,646.98 × 43,290.60
  4. Step 4: Simplify right side
    77,286.76x = 4,616,811,752.39
  5. Step 5: Solve for x
    x = 4,616,811,752.39/77,286.76
  6. Step 6: Final answer
    x = 59,736.13

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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.