Home / 88,263.07-121,790.32-51,942.90

Finding the Fourth Proportional to 88,263.07, 121,790.32 and 51,942.90

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Solution

The fourth proportional to 88,263.07, 121,790.32 and 51,942.90 is: 71,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,263.07 : 121,790.32 = 51,942.90 : x
  2. Step 2: Convert to fraction form
    88,263.07/121,790.32 = 51,942.90/x
  3. Step 3: Cross multiply
    88,263.07x = 121,790.32 × 51,942.90
  4. Step 4: Simplify right side
    88,263.07x = 6,326,142,739.58
  5. Step 5: Solve for x
    x = 6,326,142,739.58/88,263.07
  6. Step 6: Final answer
    x = 71,673.72

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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.