Home / 88,123.06-121,635.44-53,680.24

Finding the Fourth Proportional to 88,123.06, 121,635.44 and 53,680.24

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Solution

The fourth proportional to 88,123.06, 121,635.44 and 53,680.24 is: 74,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.06 : 121,635.44 = 53,680.24 : x
  2. Step 2: Convert to fraction form
    88,123.06/121,635.44 = 53,680.24/x
  3. Step 3: Cross multiply
    88,123.06x = 121,635.44 × 53,680.24
  4. Step 4: Simplify right side
    88,123.06x = 6,529,419,611.71
  5. Step 5: Solve for x
    x = 6,529,419,611.71/88,123.06
  6. Step 6: Final answer
    x = 74,094.34

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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.