Home / 97,689.29-146,532.32-31,128.51

Finding the Fourth Proportional to 97,689.29, 146,532.32 and 31,128.51

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Solution

The fourth proportional to 97,689.29, 146,532.32 and 31,128.51 is: 46,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,689.29 : 146,532.32 = 31,128.51 : x
  2. Step 2: Convert to fraction form
    97,689.29/146,532.32 = 31,128.51/x
  3. Step 3: Cross multiply
    97,689.29x = 146,532.32 × 31,128.51
  4. Step 4: Simplify right side
    97,689.29x = 4,561,332,632.80
  5. Step 5: Solve for x
    x = 4,561,332,632.80/97,689.29
  6. Step 6: Final answer
    x = 46,692.25

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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.