Home / 86,760.18-130,023.63-34,155.54

Finding the Fourth Proportional to 86,760.18, 130,023.63 and 34,155.54

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Solution

The fourth proportional to 86,760.18, 130,023.63 and 34,155.54 is: 51,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,760.18 : 130,023.63 = 34,155.54 : x
  2. Step 2: Convert to fraction form
    86,760.18/130,023.63 = 34,155.54/x
  3. Step 3: Cross multiply
    86,760.18x = 130,023.63 × 34,155.54
  4. Step 4: Simplify right side
    86,760.18x = 4,441,027,295.41
  5. Step 5: Solve for x
    x = 4,441,027,295.41/86,760.18
  6. Step 6: Final answer
    x = 51,187.39

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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.