Home / 86,449.11-129,642.47-36,533.07

Finding the Fourth Proportional to 86,449.11, 129,642.47 and 36,533.07

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Solution

The fourth proportional to 86,449.11, 129,642.47 and 36,533.07 is: 54,786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,449.11 : 129,642.47 = 36,533.07 : x
  2. Step 2: Convert to fraction form
    86,449.11/129,642.47 = 36,533.07/x
  3. Step 3: Cross multiply
    86,449.11x = 129,642.47 × 36,533.07
  4. Step 4: Simplify right side
    86,449.11x = 4,736,236,899.66
  5. Step 5: Solve for x
    x = 4,736,236,899.66/86,449.11
  6. Step 6: Final answer
    x = 54,786.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.