Home / 84,911.87-117,229.58-56,255.79

Finding the Fourth Proportional to 84,911.87, 117,229.58 and 56,255.79

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Solution

The fourth proportional to 84,911.87, 117,229.58 and 56,255.79 is: 77,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,911.87 : 117,229.58 = 56,255.79 : x
  2. Step 2: Convert to fraction form
    84,911.87/117,229.58 = 56,255.79/x
  3. Step 3: Cross multiply
    84,911.87x = 117,229.58 × 56,255.79
  4. Step 4: Simplify right side
    84,911.87x = 6,594,842,673.85
  5. Step 5: Solve for x
    x = 6,594,842,673.85/84,911.87
  6. Step 6: Final answer
    x = 77,666.91

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1.5x scale

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.