Home / 36,133.80-54,128.70-31,804.20

Finding the Fourth Proportional to 36,133.80, 54,128.70 and 31,804.20

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Solution

The fourth proportional to 36,133.80, 54,128.70 and 31,804.20 is: 47,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,133.80 : 54,128.70 = 31,804.20 : x
  2. Step 2: Convert to fraction form
    36,133.80/54,128.70 = 31,804.20/x
  3. Step 3: Cross multiply
    36,133.80x = 54,128.70 × 31,804.20
  4. Step 4: Simplify right side
    36,133.80x = 1,721,520,000.54
  5. Step 5: Solve for x
    x = 1,721,520,000.54/36,133.80
  6. Step 6: Final answer
    x = 47,642.93

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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.