Home / 40,430.20-60,645.30-38,615.80

Finding the Fourth Proportional to 40,430.20, 60,645.30 and 38,615.80

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Solution

The fourth proportional to 40,430.20, 60,645.30 and 38,615.80 is: 57,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,430.20 : 60,645.30 = 38,615.80 : x
  2. Step 2: Convert to fraction form
    40,430.20/60,645.30 = 38,615.80/x
  3. Step 3: Cross multiply
    40,430.20x = 60,645.30 × 38,615.80
  4. Step 4: Simplify right side
    40,430.20x = 2,341,866,775.74
  5. Step 5: Solve for x
    x = 2,341,866,775.74/40,430.20
  6. Step 6: Final answer
    x = 57,923.70

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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.