Home / 110,313.80-165,443.36-31,428.71

Finding the Fourth Proportional to 110,313.80, 165,443.36 and 31,428.71

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Solution

The fourth proportional to 110,313.80, 165,443.36 and 31,428.71 is: 47,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,313.80 : 165,443.36 = 31,428.71 : x
  2. Step 2: Convert to fraction form
    110,313.80/165,443.36 = 31,428.71/x
  3. Step 3: Cross multiply
    110,313.80x = 165,443.36 × 31,428.71
  4. Step 4: Simplify right side
    110,313.80x = 5,199,671,382.87
  5. Step 5: Solve for x
    x = 5,199,671,382.87/110,313.80
  6. Step 6: Final answer
    x = 47,135.28

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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.