Home / 91,022.22-125,604.54-57,029.76

Finding the Fourth Proportional to 91,022.22, 125,604.54 and 57,029.76

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Solution

The fourth proportional to 91,022.22, 125,604.54 and 57,029.76 is: 78,697.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,022.22 : 125,604.54 = 57,029.76 : x
  2. Step 2: Convert to fraction form
    91,022.22/125,604.54 = 57,029.76/x
  3. Step 3: Cross multiply
    91,022.22x = 125,604.54 × 57,029.76
  4. Step 4: Simplify right side
    91,022.22x = 7,163,196,771.11
  5. Step 5: Solve for x
    x = 7,163,196,771.11/91,022.22
  6. Step 6: Final answer
    x = 78,697.23

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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.