Home / 36,690.80-54,890.40-31,814.60

Finding the Fourth Proportional to 36,690.80, 54,890.40 and 31,814.60

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Solution

The fourth proportional to 36,690.80, 54,890.40 and 31,814.60 is: 47,595.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,690.80 : 54,890.40 = 31,814.60 : x
  2. Step 2: Convert to fraction form
    36,690.80/54,890.40 = 31,814.60/x
  3. Step 3: Cross multiply
    36,690.80x = 54,890.40 × 31,814.60
  4. Step 4: Simplify right side
    36,690.80x = 1,746,316,119.84
  5. Step 5: Solve for x
    x = 1,746,316,119.84/36,690.80
  6. Step 6: Final answer
    x = 47,595.48

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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.