Home / 85,338.04-128,007.60-26,173.48

Finding the Fourth Proportional to 85,338.04, 128,007.60 and 26,173.48

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Solution

The fourth proportional to 85,338.04, 128,007.60 and 26,173.48 is: 39,260.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,338.04 : 128,007.60 = 26,173.48 : x
  2. Step 2: Convert to fraction form
    85,338.04/128,007.60 = 26,173.48/x
  3. Step 3: Cross multiply
    85,338.04x = 128,007.60 × 26,173.48
  4. Step 4: Simplify right side
    85,338.04x = 3,350,404,358.45
  5. Step 5: Solve for x
    x = 3,350,404,358.45/85,338.04
  6. Step 6: Final answer
    x = 39,260.39

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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.