Home / 72,872.19-109,308.30-56,256.48

Finding the Fourth Proportional to 72,872.19, 109,308.30 and 56,256.48

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Solution

The fourth proportional to 72,872.19, 109,308.30 and 56,256.48 is: 84,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,872.19 : 109,308.30 = 56,256.48 : x
  2. Step 2: Convert to fraction form
    72,872.19/109,308.30 = 56,256.48/x
  3. Step 3: Cross multiply
    72,872.19x = 109,308.30 × 56,256.48
  4. Step 4: Simplify right side
    72,872.19x = 6,149,300,192.78
  5. Step 5: Solve for x
    x = 6,149,300,192.78/72,872.19
  6. Step 6: Final answer
    x = 84,384.73

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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.