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Finding the Fourth Proportional to 70,243.95, 96,909.55 and 43,339.80

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Solution

The fourth proportional to 70,243.95, 96,909.55 and 43,339.80 is: 59,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,243.95 : 96,909.55 = 43,339.80 : x
  2. Step 2: Convert to fraction form
    70,243.95/96,909.55 = 43,339.80/x
  3. Step 3: Cross multiply
    70,243.95x = 96,909.55 × 43,339.80
  4. Step 4: Simplify right side
    70,243.95x = 4,200,040,515.09
  5. Step 5: Solve for x
    x = 4,200,040,515.09/70,243.95
  6. Step 6: Final answer
    x = 59,792.20

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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.