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Finding the Fourth Proportional to 77,254.65, 115,802.08 and 43,902.90

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Solution

The fourth proportional to 77,254.65, 115,802.08 and 43,902.90 is: 65,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,254.65 : 115,802.08 = 43,902.90 : x
  2. Step 2: Convert to fraction form
    77,254.65/115,802.08 = 43,902.90/x
  3. Step 3: Cross multiply
    77,254.65x = 115,802.08 × 43,902.90
  4. Step 4: Simplify right side
    77,254.65x = 5,084,047,028.27
  5. Step 5: Solve for x
    x = 5,084,047,028.27/77,254.65
  6. Step 6: Final answer
    x = 65,808.95

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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.