Home / 86,748.60-130,228.20-55,158.60

Finding the Fourth Proportional to 86,748.60, 130,228.20 and 55,158.60

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Solution

The fourth proportional to 86,748.60, 130,228.20 and 55,158.60 is: 82,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,748.60 : 130,228.20 = 55,158.60 : x
  2. Step 2: Convert to fraction form
    86,748.60/130,228.20 = 55,158.60/x
  3. Step 3: Cross multiply
    86,748.60x = 130,228.20 × 55,158.60
  4. Step 4: Simplify right side
    86,748.60x = 7,183,205,192.52
  5. Step 5: Solve for x
    x = 7,183,205,192.52/86,748.60
  6. Step 6: Final answer
    x = 82,804.85

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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.