Home / 85,344.09-128,032.65-32,749.49

Finding the Fourth Proportional to 85,344.09, 128,032.65 and 32,749.49

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Solution

The fourth proportional to 85,344.09, 128,032.65 and 32,749.49 is: 49,130.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,344.09 : 128,032.65 = 32,749.49 : x
  2. Step 2: Convert to fraction form
    85,344.09/128,032.65 = 32,749.49/x
  3. Step 3: Cross multiply
    85,344.09x = 128,032.65 × 32,749.49
  4. Step 4: Simplify right side
    85,344.09x = 4,193,003,350.69
  5. Step 5: Solve for x
    x = 4,193,003,350.69/85,344.09
  6. Step 6: Final answer
    x = 49,130.56

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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.