Home / 90,760.40-136,140.60-57,627.35

Finding the Fourth Proportional to 90,760.40, 136,140.60 and 57,627.35

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Solution

The fourth proportional to 90,760.40, 136,140.60 and 57,627.35 is: 86,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,760.40 : 136,140.60 = 57,627.35 : x
  2. Step 2: Convert to fraction form
    90,760.40/136,140.60 = 57,627.35/x
  3. Step 3: Cross multiply
    90,760.40x = 136,140.60 × 57,627.35
  4. Step 4: Simplify right side
    90,760.40x = 7,845,422,005.41
  5. Step 5: Solve for x
    x = 7,845,422,005.41/90,760.40
  6. Step 6: Final answer
    x = 86,441.03

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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.