Home / 76,917.86-115,483.02-53,166.90

Finding the Fourth Proportional to 76,917.86, 115,483.02 and 53,166.90

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Solution

The fourth proportional to 76,917.86, 115,483.02 and 53,166.90 is: 79,823.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,917.86 : 115,483.02 = 53,166.90 : x
  2. Step 2: Convert to fraction form
    76,917.86/115,483.02 = 53,166.90/x
  3. Step 3: Cross multiply
    76,917.86x = 115,483.02 × 53,166.90
  4. Step 4: Simplify right side
    76,917.86x = 6,139,874,176.04
  5. Step 5: Solve for x
    x = 6,139,874,176.04/76,917.86
  6. Step 6: Final answer
    x = 79,823.78

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1.5x scale

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.