Home / 47,890.80-71,836.20-26,809.20

Finding the Fourth Proportional to 47,890.80, 71,836.20 and 26,809.20

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Solution

The fourth proportional to 47,890.80, 71,836.20 and 26,809.20 is: 40,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,890.80 : 71,836.20 = 26,809.20 : x
  2. Step 2: Convert to fraction form
    47,890.80/71,836.20 = 26,809.20/x
  3. Step 3: Cross multiply
    47,890.80x = 71,836.20 × 26,809.20
  4. Step 4: Simplify right side
    47,890.80x = 1,925,871,053.04
  5. Step 5: Solve for x
    x = 1,925,871,053.04/47,890.80
  6. Step 6: Final answer
    x = 40,213.80

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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.