Home / 85,345.76-128,022.06-32,032.28

Finding the Fourth Proportional to 85,345.76, 128,022.06 and 32,032.28

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Solution

The fourth proportional to 85,345.76, 128,022.06 and 32,032.28 is: 48,049.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,345.76 : 128,022.06 = 32,032.28 : x
  2. Step 2: Convert to fraction form
    85,345.76/128,022.06 = 32,032.28/x
  3. Step 3: Cross multiply
    85,345.76x = 128,022.06 × 32,032.28
  4. Step 4: Simplify right side
    85,345.76x = 4,100,838,472.10
  5. Step 5: Solve for x
    x = 4,100,838,472.10/85,345.76
  6. Step 6: Final answer
    x = 48,049.70

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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.