Home / 76,276.35-114,402.29-20,859.39

Finding the Fourth Proportional to 76,276.35, 114,402.29 and 20,859.39

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Solution

The fourth proportional to 76,276.35, 114,402.29 and 20,859.39 is: 31,285.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,276.35 : 114,402.29 = 20,859.39 : x
  2. Step 2: Convert to fraction form
    76,276.35/114,402.29 = 20,859.39/x
  3. Step 3: Cross multiply
    76,276.35x = 114,402.29 × 20,859.39
  4. Step 4: Simplify right side
    76,276.35x = 2,386,361,879.71
  5. Step 5: Solve for x
    x = 2,386,361,879.71/76,276.35
  6. Step 6: Final answer
    x = 31,285.74

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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.