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Finding the Fourth Proportional to 56,804, 78,359.70 and 43,351.82

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Solution

The fourth proportional to 56,804, 78,359.70 and 43,351.82 is: 59,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,804 : 78,359.70 = 43,351.82 : x
  2. Step 2: Convert to fraction form
    56,804/78,359.70 = 43,351.82/x
  3. Step 3: Cross multiply
    56,804x = 78,359.70 × 43,351.82
  4. Step 4: Simplify right side
    56,804x = 3,397,035,609.65
  5. Step 5: Solve for x
    x = 3,397,035,609.65/56,804
  6. Step 6: Final answer
    x = 59,802.75

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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.