Home / 55,980.08-83,943.84-20,910.32

Finding the Fourth Proportional to 55,980.08, 83,943.84 and 20,910.32

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Solution

The fourth proportional to 55,980.08, 83,943.84 and 20,910.32 is: 31,355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,980.08 : 83,943.84 = 20,910.32 : x
  2. Step 2: Convert to fraction form
    55,980.08/83,943.84 = 20,910.32/x
  3. Step 3: Cross multiply
    55,980.08x = 83,943.84 × 20,910.32
  4. Step 4: Simplify right side
    55,980.08x = 1,755,292,556.43
  5. Step 5: Solve for x
    x = 1,755,292,556.43/55,980.08
  6. Step 6: Final answer
    x = 31,355.66

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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.