Home / 89,503.23-123,512.45-48,666.47

Finding the Fourth Proportional to 89,503.23, 123,512.45 and 48,666.47

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Solution

The fourth proportional to 89,503.23, 123,512.45 and 48,666.47 is: 67,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,503.23 : 123,512.45 = 48,666.47 : x
  2. Step 2: Convert to fraction form
    89,503.23/123,512.45 = 48,666.47/x
  3. Step 3: Cross multiply
    89,503.23x = 123,512.45 × 48,666.47
  4. Step 4: Simplify right side
    89,503.23x = 6,010,914,942.55
  5. Step 5: Solve for x
    x = 6,010,914,942.55/89,503.23
  6. Step 6: Final answer
    x = 67,158.64

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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.