Home / 79,507.74-109,718.37-45,515.08

Finding the Fourth Proportional to 79,507.74, 109,718.37 and 45,515.08

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Solution

The fourth proportional to 79,507.74, 109,718.37 and 45,515.08 is: 62,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,507.74 : 109,718.37 = 45,515.08 : x
  2. Step 2: Convert to fraction form
    79,507.74/109,718.37 = 45,515.08/x
  3. Step 3: Cross multiply
    79,507.74x = 109,718.37 × 45,515.08
  4. Step 4: Simplify right side
    79,507.74x = 4,993,840,388.02
  5. Step 5: Solve for x
    x = 4,993,840,388.02/79,507.74
  6. Step 6: Final answer
    x = 62,809.49

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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.