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Finding the Fourth Proportional to 85,370.16, 128,055.24 and 32,750.92

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Solution

The fourth proportional to 85,370.16, 128,055.24 and 32,750.92 is: 49,126.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,370.16 : 128,055.24 = 32,750.92 : x
  2. Step 2: Convert to fraction form
    85,370.16/128,055.24 = 32,750.92/x
  3. Step 3: Cross multiply
    85,370.16x = 128,055.24 × 32,750.92
  4. Step 4: Simplify right side
    85,370.16x = 4,193,926,920.82
  5. Step 5: Solve for x
    x = 4,193,926,920.82/85,370.16
  6. Step 6: Final answer
    x = 49,126.38

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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.