Home / 88,309.21-121,861.78-50,585.89

Finding the Fourth Proportional to 88,309.21, 121,861.78 and 50,585.89

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Solution

The fourth proportional to 88,309.21, 121,861.78 and 50,585.89 is: 69,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,309.21 : 121,861.78 = 50,585.89 : x
  2. Step 2: Convert to fraction form
    88,309.21/121,861.78 = 50,585.89/x
  3. Step 3: Cross multiply
    88,309.21x = 121,861.78 × 50,585.89
  4. Step 4: Simplify right side
    88,309.21x = 6,164,486,598.28
  5. Step 5: Solve for x
    x = 6,164,486,598.28/88,309.21
  6. Step 6: Final answer
    x = 69,805.70

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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.