Home / 79,316.02-109,480.59-51,021.70

Finding the Fourth Proportional to 79,316.02, 109,480.59 and 51,021.70

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Solution

The fourth proportional to 79,316.02, 109,480.59 and 51,021.70 is: 70,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,316.02 : 109,480.59 = 51,021.70 : x
  2. Step 2: Convert to fraction form
    79,316.02/109,480.59 = 51,021.70/x
  3. Step 3: Cross multiply
    79,316.02x = 109,480.59 × 51,021.70
  4. Step 4: Simplify right side
    79,316.02x = 5,585,885,818.80
  5. Step 5: Solve for x
    x = 5,585,885,818.80/79,316.02
  6. Step 6: Final answer
    x = 70,425.69

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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.