Home / 98,284.40-135,525.28-66,397.92

Finding the Fourth Proportional to 98,284.40, 135,525.28 and 66,397.92

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Solution

The fourth proportional to 98,284.40, 135,525.28 and 66,397.92 is: 91,556.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,284.40 : 135,525.28 = 66,397.92 : x
  2. Step 2: Convert to fraction form
    98,284.40/135,525.28 = 66,397.92/x
  3. Step 3: Cross multiply
    98,284.40x = 135,525.28 × 66,397.92
  4. Step 4: Simplify right side
    98,284.40x = 8,998,596,699.42
  5. Step 5: Solve for x
    x = 8,998,596,699.42/98,284.40
  6. Step 6: Final answer
    x = 91,556.71

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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.