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Finding the Fourth Proportional to 88,990.34, 133,485.48 and 26,660.84

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Solution

The fourth proportional to 88,990.34, 133,485.48 and 26,660.84 is: 39,991.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,990.34 : 133,485.48 = 26,660.84 : x
  2. Step 2: Convert to fraction form
    88,990.34/133,485.48 = 26,660.84/x
  3. Step 3: Cross multiply
    88,990.34x = 133,485.48 × 26,660.84
  4. Step 4: Simplify right side
    88,990.34x = 3,558,834,357.18
  5. Step 5: Solve for x
    x = 3,558,834,357.18/88,990.34
  6. Step 6: Final answer
    x = 39,991.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.