Home / 65,237.31-90,025.96-38,381.55

Finding the Fourth Proportional to 65,237.31, 90,025.96 and 38,381.55

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Solution

The fourth proportional to 65,237.31, 90,025.96 and 38,381.55 is: 52,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,237.31 : 90,025.96 = 38,381.55 : x
  2. Step 2: Convert to fraction form
    65,237.31/90,025.96 = 38,381.55/x
  3. Step 3: Cross multiply
    65,237.31x = 90,025.96 × 38,381.55
  4. Step 4: Simplify right side
    65,237.31x = 3,455,335,451.49
  5. Step 5: Solve for x
    x = 3,455,335,451.49/65,237.31
  6. Step 6: Final answer
    x = 52,965.63

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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.