Home / 66,089.58-91,015.83-58,129.26

Finding the Fourth Proportional to 66,089.58, 91,015.83 and 58,129.26

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Solution

The fourth proportional to 66,089.58, 91,015.83 and 58,129.26 is: 80,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,089.58 : 91,015.83 = 58,129.26 : x
  2. Step 2: Convert to fraction form
    66,089.58/91,015.83 = 58,129.26/x
  3. Step 3: Cross multiply
    66,089.58x = 91,015.83 × 58,129.26
  4. Step 4: Simplify right side
    66,089.58x = 5,290,682,846.19
  5. Step 5: Solve for x
    x = 5,290,682,846.19/66,089.58
  6. Step 6: Final answer
    x = 80,053.21

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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.