Home / 79,505.35-109,814.75-59,451.45

Finding the Fourth Proportional to 79,505.35, 109,814.75 and 59,451.45

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Solution

The fourth proportional to 79,505.35, 109,814.75 and 59,451.45 is: 82,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,505.35 : 109,814.75 = 59,451.45 : x
  2. Step 2: Convert to fraction form
    79,505.35/109,814.75 = 59,451.45/x
  3. Step 3: Cross multiply
    79,505.35x = 109,814.75 × 59,451.45
  4. Step 4: Simplify right side
    79,505.35x = 6,528,646,118.89
  5. Step 5: Solve for x
    x = 6,528,646,118.89/79,505.35
  6. Step 6: Final answer
    x = 82,115.81

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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.