Home / 65,403.14-90,257.46-36,724.40

Finding the Fourth Proportional to 65,403.14, 90,257.46 and 36,724.40

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Solution

The fourth proportional to 65,403.14, 90,257.46 and 36,724.40 is: 50,680.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,403.14 : 90,257.46 = 36,724.40 : x
  2. Step 2: Convert to fraction form
    65,403.14/90,257.46 = 36,724.40/x
  3. Step 3: Cross multiply
    65,403.14x = 90,257.46 × 36,724.40
  4. Step 4: Simplify right side
    65,403.14x = 3,314,650,869.50
  5. Step 5: Solve for x
    x = 3,314,650,869.50/65,403.14
  6. Step 6: Final answer
    x = 50,680.30

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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.