Home / 85,538.58-128,305.71-23,207.46

Finding the Fourth Proportional to 85,538.58, 128,305.71 and 23,207.46

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Solution

The fourth proportional to 85,538.58, 128,305.71 and 23,207.46 is: 34,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,538.58 : 128,305.71 = 23,207.46 : x
  2. Step 2: Convert to fraction form
    85,538.58/128,305.71 = 23,207.46/x
  3. Step 3: Cross multiply
    85,538.58x = 128,305.71 × 23,207.46
  4. Step 4: Simplify right side
    85,538.58x = 2,977,649,632.60
  5. Step 5: Solve for x
    x = 2,977,649,632.60/85,538.58
  6. Step 6: Final answer
    x = 34,810.60

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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.