Home / 72,625.68-100,156.86-47,105.46

Finding the Fourth Proportional to 72,625.68, 100,156.86 and 47,105.46

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Solution

The fourth proportional to 72,625.68, 100,156.86 and 47,105.46 is: 64,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,625.68 : 100,156.86 = 47,105.46 : x
  2. Step 2: Convert to fraction form
    72,625.68/100,156.86 = 47,105.46/x
  3. Step 3: Cross multiply
    72,625.68x = 100,156.86 × 47,105.46
  4. Step 4: Simplify right side
    72,625.68x = 4,717,934,962.46
  5. Step 5: Solve for x
    x = 4,717,934,962.46/72,625.68
  6. Step 6: Final answer
    x = 64,962.35

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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.