Home / 88,328.40-132,319.80-53,163.60

Finding the Fourth Proportional to 88,328.40, 132,319.80 and 53,163.60

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Solution

The fourth proportional to 88,328.40, 132,319.80 and 53,163.60 is: 79,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,328.40 : 132,319.80 = 53,163.60 : x
  2. Step 2: Convert to fraction form
    88,328.40/132,319.80 = 53,163.60/x
  3. Step 3: Cross multiply
    88,328.40x = 132,319.80 × 53,163.60
  4. Step 4: Simplify right side
    88,328.40x = 7,034,596,919.28
  5. Step 5: Solve for x
    x = 7,034,596,919.28/88,328.40
  6. Step 6: Final answer
    x = 79,641.39

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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.