Home / 89,692.50-123,775.68-51,988.62

Finding the Fourth Proportional to 89,692.50, 123,775.68 and 51,988.62

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Solution

The fourth proportional to 89,692.50, 123,775.68 and 51,988.62 is: 71,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,692.50 : 123,775.68 = 51,988.62 : x
  2. Step 2: Convert to fraction form
    89,692.50/123,775.68 = 51,988.62/x
  3. Step 3: Cross multiply
    89,692.50x = 123,775.68 × 51,988.62
  4. Step 4: Simplify right side
    89,692.50x = 6,434,926,792.76
  5. Step 5: Solve for x
    x = 6,434,926,792.76/89,692.50
  6. Step 6: Final answer
    x = 71,744.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.