Home / 56,772.91-78,350.12-31,622.41

Finding the Fourth Proportional to 56,772.91, 78,350.12 and 31,622.41

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Solution

The fourth proportional to 56,772.91, 78,350.12 and 31,622.41 is: 43,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772.91 : 78,350.12 = 31,622.41 : x
  2. Step 2: Convert to fraction form
    56,772.91/78,350.12 = 31,622.41/x
  3. Step 3: Cross multiply
    56,772.91x = 78,350.12 × 31,622.41
  4. Step 4: Simplify right side
    56,772.91x = 2,477,619,618.19
  5. Step 5: Solve for x
    x = 2,477,619,618.19/56,772.91
  6. Step 6: Final answer
    x = 43,640.88

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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.