Home / 81,635.37-112,679.43-47,651.01

Finding the Fourth Proportional to 81,635.37, 112,679.43 and 47,651.01

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Solution

The fourth proportional to 81,635.37, 112,679.43 and 47,651.01 is: 65,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,635.37 : 112,679.43 = 47,651.01 : x
  2. Step 2: Convert to fraction form
    81,635.37/112,679.43 = 47,651.01/x
  3. Step 3: Cross multiply
    81,635.37x = 112,679.43 × 47,651.01
  4. Step 4: Simplify right side
    81,635.37x = 5,369,288,645.72
  5. Step 5: Solve for x
    x = 5,369,288,645.72/81,635.37
  6. Step 6: Final answer
    x = 65,771.60

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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.