Home / 85,392.06-128,091.75-26,230.08

Finding the Fourth Proportional to 85,392.06, 128,091.75 and 26,230.08

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Solution

The fourth proportional to 85,392.06, 128,091.75 and 26,230.08 is: 39,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,392.06 : 128,091.75 = 26,230.08 : x
  2. Step 2: Convert to fraction form
    85,392.06/128,091.75 = 26,230.08/x
  3. Step 3: Cross multiply
    85,392.06x = 128,091.75 × 26,230.08
  4. Step 4: Simplify right side
    85,392.06x = 3,359,856,849.84
  5. Step 5: Solve for x
    x = 3,359,856,849.84/85,392.06
  6. Step 6: Final answer
    x = 39,346.24

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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.