Home / 71,619.88-98,803.64-47,723.28

Finding the Fourth Proportional to 71,619.88, 98,803.64 and 47,723.28

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Solution

The fourth proportional to 71,619.88, 98,803.64 and 47,723.28 is: 65,836.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,619.88 : 98,803.64 = 47,723.28 : x
  2. Step 2: Convert to fraction form
    71,619.88/98,803.64 = 47,723.28/x
  3. Step 3: Cross multiply
    71,619.88x = 98,803.64 × 47,723.28
  4. Step 4: Simplify right side
    71,619.88x = 4,715,233,776.74
  5. Step 5: Solve for x
    x = 4,715,233,776.74/71,619.88
  6. Step 6: Final answer
    x = 65,836.94

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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.