Home / 41,430.40-62,145.60-28,124.80

Finding the Fourth Proportional to 41,430.40, 62,145.60 and 28,124.80

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Solution

The fourth proportional to 41,430.40, 62,145.60 and 28,124.80 is: 42,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,430.40 : 62,145.60 = 28,124.80 : x
  2. Step 2: Convert to fraction form
    41,430.40/62,145.60 = 28,124.80/x
  3. Step 3: Cross multiply
    41,430.40x = 62,145.60 × 28,124.80
  4. Step 4: Simplify right side
    41,430.40x = 1,747,832,570.88
  5. Step 5: Solve for x
    x = 1,747,832,570.88/41,430.40
  6. Step 6: Final answer
    x = 42,187.20

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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.