Home / 88,990.09-133,485.10-26,660.59

Finding the Fourth Proportional to 88,990.09, 133,485.10 and 26,660.59

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Solution

The fourth proportional to 88,990.09, 133,485.10 and 26,660.59 is: 39,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,990.09 : 133,485.10 = 26,660.59 : x
  2. Step 2: Convert to fraction form
    88,990.09/133,485.10 = 26,660.59/x
  3. Step 3: Cross multiply
    88,990.09x = 133,485.10 × 26,660.59
  4. Step 4: Simplify right side
    88,990.09x = 3,558,791,522.21
  5. Step 5: Solve for x
    x = 3,558,791,522.21/88,990.09
  6. Step 6: Final answer
    x = 39,990.87

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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.