Home / 46,127.71-69,137.80-21,170.39

Finding the Fourth Proportional to 46,127.71, 69,137.80 and 21,170.39

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Solution

The fourth proportional to 46,127.71, 69,137.80 and 21,170.39 is: 31,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,127.71 : 69,137.80 = 21,170.39 : x
  2. Step 2: Convert to fraction form
    46,127.71/69,137.80 = 21,170.39/x
  3. Step 3: Cross multiply
    46,127.71x = 69,137.80 × 21,170.39
  4. Step 4: Simplify right side
    46,127.71x = 1,463,674,083.89
  5. Step 5: Solve for x
    x = 1,463,674,083.89/46,127.71
  6. Step 6: Final answer
    x = 31,730.91

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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.