Home / 81,011.60-111,790.68-50,795.63

Finding the Fourth Proportional to 81,011.60, 111,790.68 and 50,795.63

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Solution

The fourth proportional to 81,011.60, 111,790.68 and 50,795.63 is: 70,094.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,011.60 : 111,790.68 = 50,795.63 : x
  2. Step 2: Convert to fraction form
    81,011.60/111,790.68 = 50,795.63/x
  3. Step 3: Cross multiply
    81,011.60x = 111,790.68 × 50,795.63
  4. Step 4: Simplify right side
    81,011.60x = 5,678,477,459.78
  5. Step 5: Solve for x
    x = 5,678,477,459.78/81,011.60
  6. Step 6: Final answer
    x = 70,094.63

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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.