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Finding the Fourth Proportional to 77,068.88, 115,618.92 and 43,804.88

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Solution

The fourth proportional to 77,068.88, 115,618.92 and 43,804.88 is: 65,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,068.88 : 115,618.92 = 43,804.88 : x
  2. Step 2: Convert to fraction form
    77,068.88/115,618.92 = 43,804.88/x
  3. Step 3: Cross multiply
    77,068.88x = 115,618.92 × 43,804.88
  4. Step 4: Simplify right side
    77,068.88x = 5,064,672,916.33
  5. Step 5: Solve for x
    x = 5,064,672,916.33/77,068.88
  6. Step 6: Final answer
    x = 65,716.19

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1.5x scale

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.