Home / 79,189.39-109,283.13-45,197.21

Finding the Fourth Proportional to 79,189.39, 109,283.13 and 45,197.21

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Solution

The fourth proportional to 79,189.39, 109,283.13 and 45,197.21 is: 62,373.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,189.39 : 109,283.13 = 45,197.21 : x
  2. Step 2: Convert to fraction form
    79,189.39/109,283.13 = 45,197.21/x
  3. Step 3: Cross multiply
    79,189.39x = 109,283.13 × 45,197.21
  4. Step 4: Simplify right side
    79,189.39x = 4,939,292,350.08
  5. Step 5: Solve for x
    x = 4,939,292,350.08/79,189.39
  6. Step 6: Final answer
    x = 62,373.16

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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.