Home / 55,650.40-83,486.55-20,590.36

Finding the Fourth Proportional to 55,650.40, 83,486.55 and 20,590.36

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Solution

The fourth proportional to 55,650.40, 83,486.55 and 20,590.36 is: 30,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,650.40 : 83,486.55 = 20,590.36 : x
  2. Step 2: Convert to fraction form
    55,650.40/83,486.55 = 20,590.36/x
  3. Step 3: Cross multiply
    55,650.40x = 83,486.55 × 20,590.36
  4. Step 4: Simplify right side
    55,650.40x = 1,719,018,119.66
  5. Step 5: Solve for x
    x = 1,719,018,119.66/55,650.40
  6. Step 6: Final answer
    x = 30,889.59

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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.