Home / 97,689.40-146,532.51-31,128.63

Finding the Fourth Proportional to 97,689.40, 146,532.51 and 31,128.63

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Solution

The fourth proportional to 97,689.40, 146,532.51 and 31,128.63 is: 46,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,689.40 : 146,532.51 = 31,128.63 : x
  2. Step 2: Convert to fraction form
    97,689.40/146,532.51 = 31,128.63/x
  3. Step 3: Cross multiply
    97,689.40x = 146,532.51 × 31,128.63
  4. Step 4: Simplify right side
    97,689.40x = 4,561,356,286.76
  5. Step 5: Solve for x
    x = 4,561,356,286.76/97,689.40
  6. Step 6: Final answer
    x = 46,692.44

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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.