Home / 85,000.24-117,300.48-47,274.56

Finding the Fourth Proportional to 85,000.24, 117,300.48 and 47,274.56

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Solution

The fourth proportional to 85,000.24, 117,300.48 and 47,274.56 is: 65,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,000.24 : 117,300.48 = 47,274.56 : x
  2. Step 2: Convert to fraction form
    85,000.24/117,300.48 = 47,274.56/x
  3. Step 3: Cross multiply
    85,000.24x = 117,300.48 × 47,274.56
  4. Step 4: Simplify right side
    85,000.24x = 5,545,328,579.79
  5. Step 5: Solve for x
    x = 5,545,328,579.79/85,000.24
  6. Step 6: Final answer
    x = 65,238.98

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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.