Home / 88,163.20-121,665.48-47,877.64

Finding the Fourth Proportional to 88,163.20, 121,665.48 and 47,877.64

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Solution

The fourth proportional to 88,163.20, 121,665.48 and 47,877.64 is: 66,071.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,163.20 : 121,665.48 = 47,877.64 : x
  2. Step 2: Convert to fraction form
    88,163.20/121,665.48 = 47,877.64/x
  3. Step 3: Cross multiply
    88,163.20x = 121,665.48 × 47,877.64
  4. Step 4: Simplify right side
    88,163.20x = 5,825,056,051.87
  5. Step 5: Solve for x
    x = 5,825,056,051.87/88,163.20
  6. Step 6: Final answer
    x = 66,071.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.