Home / 43,165.40-64,743.42-11,578.60

Finding the Fourth Proportional to 43,165.40, 64,743.42 and 11,578.60

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Solution

The fourth proportional to 43,165.40, 64,743.42 and 11,578.60 is: 17,366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,165.40 : 64,743.42 = 11,578.60 : x
  2. Step 2: Convert to fraction form
    43,165.40/64,743.42 = 11,578.60/x
  3. Step 3: Cross multiply
    43,165.40x = 64,743.42 × 11,578.60
  4. Step 4: Simplify right side
    43,165.40x = 749,638,162.81
  5. Step 5: Solve for x
    x = 749,638,162.81/43,165.40
  6. Step 6: Final answer
    x = 17,366.64

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1.5x scale

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.