Home / 79,939.24-119,981.48-42,530.60

Finding the Fourth Proportional to 79,939.24, 119,981.48 and 42,530.60

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Solution

The fourth proportional to 79,939.24, 119,981.48 and 42,530.60 is: 63,834.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,939.24 : 119,981.48 = 42,530.60 : x
  2. Step 2: Convert to fraction form
    79,939.24/119,981.48 = 42,530.60/x
  3. Step 3: Cross multiply
    79,939.24x = 119,981.48 × 42,530.60
  4. Step 4: Simplify right side
    79,939.24x = 5,102,884,333.29
  5. Step 5: Solve for x
    x = 5,102,884,333.29/79,939.24
  6. Step 6: Final answer
    x = 63,834.54

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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.