Home / 77,070.08-115,510.44-43,817.96

Finding the Fourth Proportional to 77,070.08, 115,510.44 and 43,817.96

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Solution

The fourth proportional to 77,070.08, 115,510.44 and 43,817.96 is: 65,673.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,070.08 : 115,510.44 = 43,817.96 : x
  2. Step 2: Convert to fraction form
    77,070.08/115,510.44 = 43,817.96/x
  3. Step 3: Cross multiply
    77,070.08x = 115,510.44 × 43,817.96
  4. Step 4: Simplify right side
    77,070.08x = 5,061,431,839.50
  5. Step 5: Solve for x
    x = 5,061,431,839.50/77,070.08
  6. Step 6: Final answer
    x = 65,673.11

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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.