Home / 88,085.60-121,529.85-49,317.71

Finding the Fourth Proportional to 88,085.60, 121,529.85 and 49,317.71

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Solution

The fourth proportional to 88,085.60, 121,529.85 and 49,317.71 is: 68,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,085.60 : 121,529.85 = 49,317.71 : x
  2. Step 2: Convert to fraction form
    88,085.60/121,529.85 = 49,317.71/x
  3. Step 3: Cross multiply
    88,085.60x = 121,529.85 × 49,317.71
  4. Step 4: Simplify right side
    88,085.60x = 5,993,573,290.99
  5. Step 5: Solve for x
    x = 5,993,573,290.99/88,085.60
  6. Step 6: Final answer
    x = 68,042.60

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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.