Home / 91,514.12-126,368.30-57,579.16

Finding the Fourth Proportional to 91,514.12, 126,368.30 and 57,579.16

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Solution

The fourth proportional to 91,514.12, 126,368.30 and 57,579.16 is: 79,508.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,514.12 : 126,368.30 = 57,579.16 : x
  2. Step 2: Convert to fraction form
    91,514.12/126,368.30 = 57,579.16/x
  3. Step 3: Cross multiply
    91,514.12x = 126,368.30 × 57,579.16
  4. Step 4: Simplify right side
    91,514.12x = 7,276,180,564.63
  5. Step 5: Solve for x
    x = 7,276,180,564.63/91,514.12
  6. Step 6: Final answer
    x = 79,508.83

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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.