Home / 85,926.06-128,837.31-38,532.57

Finding the Fourth Proportional to 85,926.06, 128,837.31 and 38,532.57

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Solution

The fourth proportional to 85,926.06, 128,837.31 and 38,532.57 is: 57,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,926.06 : 128,837.31 = 38,532.57 : x
  2. Step 2: Convert to fraction form
    85,926.06/128,837.31 = 38,532.57/x
  3. Step 3: Cross multiply
    85,926.06x = 128,837.31 × 38,532.57
  4. Step 4: Simplify right side
    85,926.06x = 4,964,432,666.19
  5. Step 5: Solve for x
    x = 4,964,432,666.19/85,926.06
  6. Step 6: Final answer
    x = 57,775.63

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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.