Home / 65,621.40-90,609.12-52,833.96

Finding the Fourth Proportional to 65,621.40, 90,609.12 and 52,833.96

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Solution

The fourth proportional to 65,621.40, 90,609.12 and 52,833.96 is: 72,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,621.40 : 90,609.12 = 52,833.96 : x
  2. Step 2: Convert to fraction form
    65,621.40/90,609.12 = 52,833.96/x
  3. Step 3: Cross multiply
    65,621.40x = 90,609.12 × 52,833.96
  4. Step 4: Simplify right side
    65,621.40x = 4,787,238,621.72
  5. Step 5: Solve for x
    x = 4,787,238,621.72/65,621.40
  6. Step 6: Final answer
    x = 72,952.40

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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.