Home / 64,619.52-89,165.28-36,319.74

Finding the Fourth Proportional to 64,619.52, 89,165.28 and 36,319.74

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Solution

The fourth proportional to 64,619.52, 89,165.28 and 36,319.74 is: 50,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,619.52 : 89,165.28 = 36,319.74 : x
  2. Step 2: Convert to fraction form
    64,619.52/89,165.28 = 36,319.74/x
  3. Step 3: Cross multiply
    64,619.52x = 89,165.28 × 36,319.74
  4. Step 4: Simplify right side
    64,619.52x = 3,238,459,786.63
  5. Step 5: Solve for x
    x = 3,238,459,786.63/64,619.52
  6. Step 6: Final answer
    x = 50,115.81

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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.