Home / 89,518.80-123,526.26-51,786

Finding the Fourth Proportional to 89,518.80, 123,526.26 and 51,786

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Solution

The fourth proportional to 89,518.80, 123,526.26 and 51,786 is: 71,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,518.80 : 123,526.26 = 51,786 : x
  2. Step 2: Convert to fraction form
    89,518.80/123,526.26 = 51,786/x
  3. Step 3: Cross multiply
    89,518.80x = 123,526.26 × 51,786
  4. Step 4: Simplify right side
    89,518.80x = 6,396,930,900.36
  5. Step 5: Solve for x
    x = 6,396,930,900.36/89,518.80
  6. Step 6: Final answer
    x = 71,459.08

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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.