Home / 79,315.28-109,458.16-43,506.80

Finding the Fourth Proportional to 79,315.28, 109,458.16 and 43,506.80

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Solution

The fourth proportional to 79,315.28, 109,458.16 and 43,506.80 is: 60,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,315.28 : 109,458.16 = 43,506.80 : x
  2. Step 2: Convert to fraction form
    79,315.28/109,458.16 = 43,506.80/x
  3. Step 3: Cross multiply
    79,315.28x = 109,458.16 × 43,506.80
  4. Step 4: Simplify right side
    79,315.28x = 4,762,174,275.49
  5. Step 5: Solve for x
    x = 4,762,174,275.49/79,315.28
  6. Step 6: Final answer
    x = 60,041.07

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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.