Home / 79,939.04-110,320.80-45,958.40

Finding the Fourth Proportional to 79,939.04, 110,320.80 and 45,958.40

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Solution

The fourth proportional to 79,939.04, 110,320.80 and 45,958.40 is: 63,425.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,939.04 : 110,320.80 = 45,958.40 : x
  2. Step 2: Convert to fraction form
    79,939.04/110,320.80 = 45,958.40/x
  3. Step 3: Cross multiply
    79,939.04x = 110,320.80 × 45,958.40
  4. Step 4: Simplify right side
    79,939.04x = 5,070,167,454.72
  5. Step 5: Solve for x
    x = 5,070,167,454.72/79,939.04
  6. Step 6: Final answer
    x = 63,425.42

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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.