Home / 79,501.13-109,711.18-45,509.44

Finding the Fourth Proportional to 79,501.13, 109,711.18 and 45,509.44

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Solution

The fourth proportional to 79,501.13, 109,711.18 and 45,509.44 is: 62,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,501.13 : 109,711.18 = 45,509.44 : x
  2. Step 2: Convert to fraction form
    79,501.13/109,711.18 = 45,509.44/x
  3. Step 3: Cross multiply
    79,501.13x = 109,711.18 × 45,509.44
  4. Step 4: Simplify right side
    79,501.13x = 4,992,894,135.99
  5. Step 5: Solve for x
    x = 4,992,894,135.99/79,501.13
  6. Step 6: Final answer
    x = 62,802.81

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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.