Home / 56,749.20-85,137.60-17,307.12

Finding the Fourth Proportional to 56,749.20, 85,137.60 and 17,307.12

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Solution

The fourth proportional to 56,749.20, 85,137.60 and 17,307.12 is: 25,964.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,749.20 : 85,137.60 = 17,307.12 : x
  2. Step 2: Convert to fraction form
    56,749.20/85,137.60 = 17,307.12/x
  3. Step 3: Cross multiply
    56,749.20x = 85,137.60 × 17,307.12
  4. Step 4: Simplify right side
    56,749.20x = 1,473,486,659.71
  5. Step 5: Solve for x
    x = 1,473,486,659.71/56,749.20
  6. Step 6: Final answer
    x = 25,964.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.