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Finding the Fourth Proportional to 63,886.56, 88,215.36 and 57,160.32

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Solution

The fourth proportional to 63,886.56, 88,215.36 and 57,160.32 is: 78,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,886.56 : 88,215.36 = 57,160.32 : x
  2. Step 2: Convert to fraction form
    63,886.56/88,215.36 = 57,160.32/x
  3. Step 3: Cross multiply
    63,886.56x = 88,215.36 × 57,160.32
  4. Step 4: Simplify right side
    63,886.56x = 5,042,418,206.52
  5. Step 5: Solve for x
    x = 5,042,418,206.52/63,886.56
  6. Step 6: Final answer
    x = 78,927.68

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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.