Home / 72,990.13-109,436.56-26,236.93

Finding the Fourth Proportional to 72,990.13, 109,436.56 and 26,236.93

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Solution

The fourth proportional to 72,990.13, 109,436.56 and 26,236.93 is: 39,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,990.13 : 109,436.56 = 26,236.93 : x
  2. Step 2: Convert to fraction form
    72,990.13/109,436.56 = 26,236.93/x
  3. Step 3: Cross multiply
    72,990.13x = 109,436.56 × 26,236.93
  4. Step 4: Simplify right side
    72,990.13x = 2,871,279,232.98
  5. Step 5: Solve for x
    x = 2,871,279,232.98/72,990.13
  6. Step 6: Final answer
    x = 39,337.91

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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.