Home / 82,431.36-113,762.84-51,809.44

Finding the Fourth Proportional to 82,431.36, 113,762.84 and 51,809.44

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Solution

The fourth proportional to 82,431.36, 113,762.84 and 51,809.44 is: 71,501.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,431.36 : 113,762.84 = 51,809.44 : x
  2. Step 2: Convert to fraction form
    82,431.36/113,762.84 = 51,809.44/x
  3. Step 3: Cross multiply
    82,431.36x = 113,762.84 × 51,809.44
  4. Step 4: Simplify right side
    82,431.36x = 5,893,988,205.35
  5. Step 5: Solve for x
    x = 5,893,988,205.35/82,431.36
  6. Step 6: Final answer
    x = 71,501.77

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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.