Home / 65,236.90-90,025.40-38,381.14

Finding the Fourth Proportional to 65,236.90, 90,025.40 and 38,381.14

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Solution

The fourth proportional to 65,236.90, 90,025.40 and 38,381.14 is: 52,965.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,236.90 : 90,025.40 = 38,381.14 : x
  2. Step 2: Convert to fraction form
    65,236.90/90,025.40 = 38,381.14/x
  3. Step 3: Cross multiply
    65,236.90x = 90,025.40 × 38,381.14
  4. Step 4: Simplify right side
    65,236.90x = 3,455,277,159.94
  5. Step 5: Solve for x
    x = 3,455,277,159.94/65,236.90
  6. Step 6: Final answer
    x = 52,965.07

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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.