Home / 56,802.75-78,389.42-31,653.87

Finding the Fourth Proportional to 56,802.75, 78,389.42 and 31,653.87

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Solution

The fourth proportional to 56,802.75, 78,389.42 and 31,653.87 is: 43,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,802.75 : 78,389.42 = 31,653.87 : x
  2. Step 2: Convert to fraction form
    56,802.75/78,389.42 = 31,653.87/x
  3. Step 3: Cross multiply
    56,802.75x = 78,389.42 × 31,653.87
  4. Step 4: Simplify right side
    56,802.75x = 2,481,328,351.79
  5. Step 5: Solve for x
    x = 2,481,328,351.79/56,802.75
  6. Step 6: Final answer
    x = 43,683.24

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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.