Home / 85,502.12-128,266.97-26,337.77

Finding the Fourth Proportional to 85,502.12, 128,266.97 and 26,337.77

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Solution

The fourth proportional to 85,502.12, 128,266.97 and 26,337.77 is: 39,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,502.12 : 128,266.97 = 26,337.77 : x
  2. Step 2: Convert to fraction form
    85,502.12/128,266.97 = 26,337.77/x
  3. Step 3: Cross multiply
    85,502.12x = 128,266.97 × 26,337.77
  4. Step 4: Simplify right side
    85,502.12x = 3,378,265,181.43
  5. Step 5: Solve for x
    x = 3,378,265,181.43/85,502.12
  6. Step 6: Final answer
    x = 39,510.90

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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.