Home / 65,435.24-90,288.58-38,586.28

Finding the Fourth Proportional to 65,435.24, 90,288.58 and 38,586.28

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Solution

The fourth proportional to 65,435.24, 90,288.58 and 38,586.28 is: 53,241.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,435.24 : 90,288.58 = 38,586.28 : x
  2. Step 2: Convert to fraction form
    65,435.24/90,288.58 = 38,586.28/x
  3. Step 3: Cross multiply
    65,435.24x = 90,288.58 × 38,586.28
  4. Step 4: Simplify right side
    65,435.24x = 3,483,900,428.68
  5. Step 5: Solve for x
    x = 3,483,900,428.68/65,435.24
  6. Step 6: Final answer
    x = 53,241.96

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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.