Home / 80,745.12-111,430.08-44,938.80

Finding the Fourth Proportional to 80,745.12, 111,430.08 and 44,938.80

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Solution

The fourth proportional to 80,745.12, 111,430.08 and 44,938.80 is: 62,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,745.12 : 111,430.08 = 44,938.80 : x
  2. Step 2: Convert to fraction form
    80,745.12/111,430.08 = 44,938.80/x
  3. Step 3: Cross multiply
    80,745.12x = 111,430.08 × 44,938.80
  4. Step 4: Simplify right side
    80,745.12x = 5,007,534,079.10
  5. Step 5: Solve for x
    x = 5,007,534,079.10/80,745.12
  6. Step 6: Final answer
    x = 62,016.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.