Home / 76,508.37-105,582.13-42,520.04

Finding the Fourth Proportional to 76,508.37, 105,582.13 and 42,520.04

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Solution

The fourth proportional to 76,508.37, 105,582.13 and 42,520.04 is: 58,677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,508.37 : 105,582.13 = 42,520.04 : x
  2. Step 2: Convert to fraction form
    76,508.37/105,582.13 = 42,520.04/x
  3. Step 3: Cross multiply
    76,508.37x = 105,582.13 × 42,520.04
  4. Step 4: Simplify right side
    76,508.37x = 4,489,356,985.68
  5. Step 5: Solve for x
    x = 4,489,356,985.68/76,508.37
  6. Step 6: Final answer
    x = 58,677.98

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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.