Home / 55,745.13-83,630.67-18,809.13

Finding the Fourth Proportional to 55,745.13, 83,630.67 and 18,809.13

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Solution

The fourth proportional to 55,745.13, 83,630.67 and 18,809.13 is: 28,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,745.13 : 83,630.67 = 18,809.13 : x
  2. Step 2: Convert to fraction form
    55,745.13/83,630.67 = 18,809.13/x
  3. Step 3: Cross multiply
    55,745.13x = 83,630.67 × 18,809.13
  4. Step 4: Simplify right side
    55,745.13x = 1,573,020,144.02
  5. Step 5: Solve for x
    x = 1,573,020,144.02/55,745.13
  6. Step 6: Final answer
    x = 28,218.07

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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.