Home / 79,430.34-109,586.47-50,766.78

Finding the Fourth Proportional to 79,430.34, 109,586.47 and 50,766.78

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Solution

The fourth proportional to 79,430.34, 109,586.47 and 50,766.78 is: 70,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,430.34 : 109,586.47 = 50,766.78 : x
  2. Step 2: Convert to fraction form
    79,430.34/109,586.47 = 50,766.78/x
  3. Step 3: Cross multiply
    79,430.34x = 109,586.47 × 50,766.78
  4. Step 4: Simplify right side
    79,430.34x = 5,563,352,284.47
  5. Step 5: Solve for x
    x = 5,563,352,284.47/79,430.34
  6. Step 6: Final answer
    x = 70,040.64

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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.