Home / 81,263.37-112,143.74-45,451.09

Finding the Fourth Proportional to 81,263.37, 112,143.74 and 45,451.09

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Solution

The fourth proportional to 81,263.37, 112,143.74 and 45,451.09 is: 62,722.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,263.37 : 112,143.74 = 45,451.09 : x
  2. Step 2: Convert to fraction form
    81,263.37/112,143.74 = 45,451.09/x
  3. Step 3: Cross multiply
    81,263.37x = 112,143.74 × 45,451.09
  4. Step 4: Simplify right side
    81,263.37x = 5,097,054,992.42
  5. Step 5: Solve for x
    x = 5,097,054,992.42/81,263.37
  6. Step 6: Final answer
    x = 62,722.66

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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.