Home / 65,459.46-90,329.73-38,600.70

Finding the Fourth Proportional to 65,459.46, 90,329.73 and 38,600.70

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Solution

The fourth proportional to 65,459.46, 90,329.73 and 38,600.70 is: 53,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,459.46 : 90,329.73 = 38,600.70 : x
  2. Step 2: Convert to fraction form
    65,459.46/90,329.73 = 38,600.70/x
  3. Step 3: Cross multiply
    65,459.46x = 90,329.73 × 38,600.70
  4. Step 4: Simplify right side
    65,459.46x = 3,486,790,808.81
  5. Step 5: Solve for x
    x = 3,486,790,808.81/65,459.46
  6. Step 6: Final answer
    x = 53,266.42

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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.