Home / 79,752.48-119,530.20-40,320.84

Finding the Fourth Proportional to 79,752.48, 119,530.20 and 40,320.84

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Solution

The fourth proportional to 79,752.48, 119,530.20 and 40,320.84 is: 60,431.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,752.48 : 119,530.20 = 40,320.84 : x
  2. Step 2: Convert to fraction form
    79,752.48/119,530.20 = 40,320.84/x
  3. Step 3: Cross multiply
    79,752.48x = 119,530.20 × 40,320.84
  4. Step 4: Simplify right side
    79,752.48x = 4,819,558,069.37
  5. Step 5: Solve for x
    x = 4,819,558,069.37/79,752.48
  6. Step 6: Final answer
    x = 60,431.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.