Home / 65,349.61-90,233.25-50,218.40

Finding the Fourth Proportional to 65,349.61, 90,233.25 and 50,218.40

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Solution

The fourth proportional to 65,349.61, 90,233.25 and 50,218.40 is: 69,340.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,349.61 : 90,233.25 = 50,218.40 : x
  2. Step 2: Convert to fraction form
    65,349.61/90,233.25 = 50,218.40/x
  3. Step 3: Cross multiply
    65,349.61x = 90,233.25 × 50,218.40
  4. Step 4: Simplify right side
    65,349.61x = 4,531,369,441.80
  5. Step 5: Solve for x
    x = 4,531,369,441.80/65,349.61
  6. Step 6: Final answer
    x = 69,340.42

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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.