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Finding the Fourth Proportional to 88,896.32, 122,619.12 and 57,014.72

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Solution

The fourth proportional to 88,896.32, 122,619.12 and 57,014.72 is: 78,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,896.32 : 122,619.12 = 57,014.72 : x
  2. Step 2: Convert to fraction form
    88,896.32/122,619.12 = 57,014.72/x
  3. Step 3: Cross multiply
    88,896.32x = 122,619.12 × 57,014.72
  4. Step 4: Simplify right side
    88,896.32x = 6,991,094,793.45
  5. Step 5: Solve for x
    x = 6,991,094,793.45/88,896.32
  6. Step 6: Final answer
    x = 78,643.24

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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.