Home / 85,392.11-128,088.60-35,472.27

Finding the Fourth Proportional to 85,392.11, 128,088.60 and 35,472.27

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Solution

The fourth proportional to 85,392.11, 128,088.60 and 35,472.27 is: 53,208.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,392.11 : 128,088.60 = 35,472.27 : x
  2. Step 2: Convert to fraction form
    85,392.11/128,088.60 = 35,472.27/x
  3. Step 3: Cross multiply
    85,392.11x = 128,088.60 × 35,472.27
  4. Step 4: Simplify right side
    85,392.11x = 4,543,593,099.22
  5. Step 5: Solve for x
    x = 4,543,593,099.22/85,392.11
  6. Step 6: Final answer
    x = 53,208.58

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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.