Home / 85,832.20-128,757.90-26,667.40

Finding the Fourth Proportional to 85,832.20, 128,757.90 and 26,667.40

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Solution

The fourth proportional to 85,832.20, 128,757.90 and 26,667.40 is: 40,004.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,832.20 : 128,757.90 = 26,667.40 : x
  2. Step 2: Convert to fraction form
    85,832.20/128,757.90 = 26,667.40/x
  3. Step 3: Cross multiply
    85,832.20x = 128,757.90 × 26,667.40
  4. Step 4: Simplify right side
    85,832.20x = 3,433,638,422.46
  5. Step 5: Solve for x
    x = 3,433,638,422.46/85,832.20
  6. Step 6: Final answer
    x = 40,004.08

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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.