Home / 89,525.85-123,539.64-51,285.57

Finding the Fourth Proportional to 89,525.85, 123,539.64 and 51,285.57

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Solution

The fourth proportional to 89,525.85, 123,539.64 and 51,285.57 is: 70,770.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,525.85 : 123,539.64 = 51,285.57 : x
  2. Step 2: Convert to fraction form
    89,525.85/123,539.64 = 51,285.57/x
  3. Step 3: Cross multiply
    89,525.85x = 123,539.64 × 51,285.57
  4. Step 4: Simplify right side
    89,525.85x = 6,335,800,854.99
  5. Step 5: Solve for x
    x = 6,335,800,854.99/89,525.85
  6. Step 6: Final answer
    x = 70,770.63

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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.