Home / 56,619.84-78,061.92-36,440.64

Finding the Fourth Proportional to 56,619.84, 78,061.92 and 36,440.64

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Solution

The fourth proportional to 56,619.84, 78,061.92 and 36,440.64 is: 50,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,619.84 : 78,061.92 = 36,440.64 : x
  2. Step 2: Convert to fraction form
    56,619.84/78,061.92 = 36,440.64/x
  3. Step 3: Cross multiply
    56,619.84x = 78,061.92 × 36,440.64
  4. Step 4: Simplify right side
    56,619.84x = 2,844,626,324.43
  5. Step 5: Solve for x
    x = 2,844,626,324.43/56,619.84
  6. Step 6: Final answer
    x = 50,240.80

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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.