Home / 79,529.18-109,750.50-45,538.20

Finding the Fourth Proportional to 79,529.18, 109,750.50 and 45,538.20

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Solution

The fourth proportional to 79,529.18, 109,750.50 and 45,538.20 is: 62,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,529.18 : 109,750.50 = 45,538.20 : x
  2. Step 2: Convert to fraction form
    79,529.18/109,750.50 = 45,538.20/x
  3. Step 3: Cross multiply
    79,529.18x = 109,750.50 × 45,538.20
  4. Step 4: Simplify right side
    79,529.18x = 4,997,840,219.10
  5. Step 5: Solve for x
    x = 4,997,840,219.10/79,529.18
  6. Step 6: Final answer
    x = 62,842.85

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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.