Home / 61,578.01-85,016.44-47,211.20

Finding the Fourth Proportional to 61,578.01, 85,016.44 and 47,211.20

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Solution

The fourth proportional to 61,578.01, 85,016.44 and 47,211.20 is: 65,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,578.01 : 85,016.44 = 47,211.20 : x
  2. Step 2: Convert to fraction form
    61,578.01/85,016.44 = 47,211.20/x
  3. Step 3: Cross multiply
    61,578.01x = 85,016.44 × 47,211.20
  4. Step 4: Simplify right side
    61,578.01x = 4,013,728,715.87
  5. Step 5: Solve for x
    x = 4,013,728,715.87/61,578.01
  6. Step 6: Final answer
    x = 65,181.20

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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.