Home / 80,808.27-121,047.16-65,868.63

Finding the Fourth Proportional to 80,808.27, 121,047.16 and 65,868.63

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Solution

The fourth proportional to 80,808.27, 121,047.16 and 65,868.63 is: 98,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,808.27 : 121,047.16 = 65,868.63 : x
  2. Step 2: Convert to fraction form
    80,808.27/121,047.16 = 65,868.63/x
  3. Step 3: Cross multiply
    80,808.27x = 121,047.16 × 65,868.63
  4. Step 4: Simplify right side
    80,808.27x = 7,973,210,594.59
  5. Step 5: Solve for x
    x = 7,973,210,594.59/80,808.27
  6. Step 6: Final answer
    x = 98,668.25

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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.