Home / 85,460.54-128,187.09-26,293.68

Finding the Fourth Proportional to 85,460.54, 128,187.09 and 26,293.68

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Solution

The fourth proportional to 85,460.54, 128,187.09 and 26,293.68 is: 39,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,460.54 : 128,187.09 = 26,293.68 : x
  2. Step 2: Convert to fraction form
    85,460.54/128,187.09 = 26,293.68/x
  3. Step 3: Cross multiply
    85,460.54x = 128,187.09 × 26,293.68
  4. Step 4: Simplify right side
    85,460.54x = 3,370,510,324.59
  5. Step 5: Solve for x
    x = 3,370,510,324.59/85,460.54
  6. Step 6: Final answer
    x = 39,439.38

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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.