Home / 79,283.79-109,469.03-51,038.68

Finding the Fourth Proportional to 79,283.79, 109,469.03 and 51,038.68

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Solution

The fourth proportional to 79,283.79, 109,469.03 and 51,038.68 is: 70,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,283.79 : 109,469.03 = 51,038.68 : x
  2. Step 2: Convert to fraction form
    79,283.79/109,469.03 = 51,038.68/x
  3. Step 3: Cross multiply
    79,283.79x = 109,469.03 × 51,038.68
  4. Step 4: Simplify right side
    79,283.79x = 5,587,154,792.08
  5. Step 5: Solve for x
    x = 5,587,154,792.08/79,283.79
  6. Step 6: Final answer
    x = 70,470.33

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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.