Home / 79,309.65-109,453.08-45,317.36

Finding the Fourth Proportional to 79,309.65, 109,453.08 and 45,317.36

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Solution

The fourth proportional to 79,309.65, 109,453.08 and 45,317.36 is: 62,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,309.65 : 109,453.08 = 45,317.36 : x
  2. Step 2: Convert to fraction form
    79,309.65/109,453.08 = 45,317.36/x
  3. Step 3: Cross multiply
    79,309.65x = 109,453.08 × 45,317.36
  4. Step 4: Simplify right side
    79,309.65x = 4,960,124,629.47
  5. Step 5: Solve for x
    x = 4,960,124,629.47/79,309.65
  6. Step 6: Final answer
    x = 62,541.25

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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.