Home / 57,047.14-78,725.28-31,896.64

Finding the Fourth Proportional to 57,047.14, 78,725.28 and 31,896.64

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Solution

The fourth proportional to 57,047.14, 78,725.28 and 31,896.64 is: 44,017.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,047.14 : 78,725.28 = 31,896.64 : x
  2. Step 2: Convert to fraction form
    57,047.14/78,725.28 = 31,896.64/x
  3. Step 3: Cross multiply
    57,047.14x = 78,725.28 × 31,896.64
  4. Step 4: Simplify right side
    57,047.14x = 2,511,071,915.06
  5. Step 5: Solve for x
    x = 2,511,071,915.06/57,047.14
  6. Step 6: Final answer
    x = 44,017.49

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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.