Home / 75,729.57-104,507.21-43,461.61

Finding the Fourth Proportional to 75,729.57, 104,507.21 and 43,461.61

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Solution

The fourth proportional to 75,729.57, 104,507.21 and 43,461.61 is: 59,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,729.57 : 104,507.21 = 43,461.61 : x
  2. Step 2: Convert to fraction form
    75,729.57/104,507.21 = 43,461.61/x
  3. Step 3: Cross multiply
    75,729.57x = 104,507.21 × 43,461.61
  4. Step 4: Simplify right side
    75,729.57x = 4,542,051,603.21
  5. Step 5: Solve for x
    x = 4,542,051,603.21/75,729.57
  6. Step 6: Final answer
    x = 59,977.25

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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.