Home / 55,945.10-83,918.77-20,877.76

Finding the Fourth Proportional to 55,945.10, 83,918.77 and 20,877.76

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Solution

The fourth proportional to 55,945.10, 83,918.77 and 20,877.76 is: 31,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,945.10 : 83,918.77 = 20,877.76 : x
  2. Step 2: Convert to fraction form
    55,945.10/83,918.77 = 20,877.76/x
  3. Step 3: Cross multiply
    55,945.10x = 83,918.77 × 20,877.76
  4. Step 4: Simplify right side
    55,945.10x = 1,752,035,939.56
  5. Step 5: Solve for x
    x = 1,752,035,939.56/55,945.10
  6. Step 6: Final answer
    x = 31,317.06

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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.