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Finding the Fourth Proportional to 60,430.38, 90,647.37 and 28,843.80

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Solution

The fourth proportional to 60,430.38, 90,647.37 and 28,843.80 is: 43,266.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,430.38 : 90,647.37 = 28,843.80 : x
  2. Step 2: Convert to fraction form
    60,430.38/90,647.37 = 28,843.80/x
  3. Step 3: Cross multiply
    60,430.38x = 90,647.37 × 28,843.80
  4. Step 4: Simplify right side
    60,430.38x = 2,614,614,610.81
  5. Step 5: Solve for x
    x = 2,614,614,610.81/60,430.38
  6. Step 6: Final answer
    x = 43,266.56

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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.