Home / 86,250.31-119,005.09-72,504.91

Finding the Fourth Proportional to 86,250.31, 119,005.09 and 72,504.91

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Solution

The fourth proportional to 86,250.31, 119,005.09 and 72,504.91 is: 100,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,250.31 : 119,005.09 = 72,504.91 : x
  2. Step 2: Convert to fraction form
    86,250.31/119,005.09 = 72,504.91/x
  3. Step 3: Cross multiply
    86,250.31x = 119,005.09 × 72,504.91
  4. Step 4: Simplify right side
    86,250.31x = 8,628,453,846.11
  5. Step 5: Solve for x
    x = 8,628,453,846.11/86,250.31
  6. Step 6: Final answer
    x = 100,039.68

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1.5x scale

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.