Home / 82,427.99-122,901.26-75,390.45

Finding the Fourth Proportional to 82,427.99, 122,901.26 and 75,390.45

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Solution

The fourth proportional to 82,427.99, 122,901.26 and 75,390.45 is: 112,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,427.99 : 122,901.26 = 75,390.45 : x
  2. Step 2: Convert to fraction form
    82,427.99/122,901.26 = 75,390.45/x
  3. Step 3: Cross multiply
    82,427.99x = 122,901.26 × 75,390.45
  4. Step 4: Simplify right side
    82,427.99x = 9,265,580,512.14
  5. Step 5: Solve for x
    x = 9,265,580,512.14/82,427.99
  6. Step 6: Final answer
    x = 112,408.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.