Home / 88,218.46-121,740-47,932.84

Finding the Fourth Proportional to 88,218.46, 121,740 and 47,932.84

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Solution

The fourth proportional to 88,218.46, 121,740 and 47,932.84 is: 66,146.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,218.46 : 121,740 = 47,932.84 : x
  2. Step 2: Convert to fraction form
    88,218.46/121,740 = 47,932.84/x
  3. Step 3: Cross multiply
    88,218.46x = 121,740 × 47,932.84
  4. Step 4: Simplify right side
    88,218.46x = 5,835,343,941.60
  5. Step 5: Solve for x
    x = 5,835,343,941.60/88,218.46
  6. Step 6: Final answer
    x = 66,146.52

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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.