Home / 88,218.21-121,739.66-47,932.59

Finding the Fourth Proportional to 88,218.21, 121,739.66 and 47,932.59

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Solution

The fourth proportional to 88,218.21, 121,739.66 and 47,932.59 is: 66,146.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,218.21 : 121,739.66 = 47,932.59 : x
  2. Step 2: Convert to fraction form
    88,218.21/121,739.66 = 47,932.59/x
  3. Step 3: Cross multiply
    88,218.21x = 121,739.66 × 47,932.59
  4. Step 4: Simplify right side
    88,218.21x = 5,835,296,969.86
  5. Step 5: Solve for x
    x = 5,835,296,969.86/88,218.21
  6. Step 6: Final answer
    x = 66,146.17

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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.