Home / 86,515.74-119,393.22-50,715.90

Finding the Fourth Proportional to 86,515.74, 119,393.22 and 50,715.90

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Solution

The fourth proportional to 86,515.74, 119,393.22 and 50,715.90 is: 69,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,515.74 : 119,393.22 = 50,715.90 : x
  2. Step 2: Convert to fraction form
    86,515.74/119,393.22 = 50,715.90/x
  3. Step 3: Cross multiply
    86,515.74x = 119,393.22 × 50,715.90
  4. Step 4: Simplify right side
    86,515.74x = 6,055,134,606.20
  5. Step 5: Solve for x
    x = 6,055,134,606.20/86,515.74
  6. Step 6: Final answer
    x = 69,988.82

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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.