Home / 70,808.24-97,718.88-38,976.80

Finding the Fourth Proportional to 70,808.24, 97,718.88 and 38,976.80

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Solution

The fourth proportional to 70,808.24, 97,718.88 and 38,976.80 is: 53,789.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,808.24 : 97,718.88 = 38,976.80 : x
  2. Step 2: Convert to fraction form
    70,808.24/97,718.88 = 38,976.80/x
  3. Step 3: Cross multiply
    70,808.24x = 97,718.88 × 38,976.80
  4. Step 4: Simplify right side
    70,808.24x = 3,808,769,241.98
  5. Step 5: Solve for x
    x = 3,808,769,241.98/70,808.24
  6. Step 6: Final answer
    x = 53,789.92

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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.