Home / 88,083.18-121,613.31-52,284.69

Finding the Fourth Proportional to 88,083.18, 121,613.31 and 52,284.69

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Solution

The fourth proportional to 88,083.18, 121,613.31 and 52,284.69 is: 72,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,083.18 : 121,613.31 = 52,284.69 : x
  2. Step 2: Convert to fraction form
    88,083.18/121,613.31 = 52,284.69/x
  3. Step 3: Cross multiply
    88,083.18x = 121,613.31 × 52,284.69
  4. Step 4: Simplify right side
    88,083.18x = 6,358,514,213.22
  5. Step 5: Solve for x
    x = 6,358,514,213.22/88,083.18
  6. Step 6: Final answer
    x = 72,187.61

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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.