Home / 57,381.22-85,887.55-30,660.40

Finding the Fourth Proportional to 57,381.22, 85,887.55 and 30,660.40

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Solution

The fourth proportional to 57,381.22, 85,887.55 and 30,660.40 is: 45,892.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,381.22 : 85,887.55 = 30,660.40 : x
  2. Step 2: Convert to fraction form
    57,381.22/85,887.55 = 30,660.40/x
  3. Step 3: Cross multiply
    57,381.22x = 85,887.55 × 30,660.40
  4. Step 4: Simplify right side
    57,381.22x = 2,633,346,638.02
  5. Step 5: Solve for x
    x = 2,633,346,638.02/57,381.22
  6. Step 6: Final answer
    x = 45,892.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.