Home / 85,532.10-128,207.40-32,918.82

Finding the Fourth Proportional to 85,532.10, 128,207.40 and 32,918.82

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Solution

The fourth proportional to 85,532.10, 128,207.40 and 32,918.82 is: 49,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,532.10 : 128,207.40 = 32,918.82 : x
  2. Step 2: Convert to fraction form
    85,532.10/128,207.40 = 32,918.82/x
  3. Step 3: Cross multiply
    85,532.10x = 128,207.40 × 32,918.82
  4. Step 4: Simplify right side
    85,532.10x = 4,220,436,323.27
  5. Step 5: Solve for x
    x = 4,220,436,323.27/85,532.10
  6. Step 6: Final answer
    x = 49,343.30

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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.