Home / 89,603.21-123,650.09-48,768.18

Finding the Fourth Proportional to 89,603.21, 123,650.09 and 48,768.18

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Solution

The fourth proportional to 89,603.21, 123,650.09 and 48,768.18 is: 67,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,603.21 : 123,650.09 = 48,768.18 : x
  2. Step 2: Convert to fraction form
    89,603.21/123,650.09 = 48,768.18/x
  3. Step 3: Cross multiply
    89,603.21x = 123,650.09 × 48,768.18
  4. Step 4: Simplify right side
    89,603.21x = 6,030,189,595.81
  5. Step 5: Solve for x
    x = 6,030,189,595.81/89,603.21
  6. Step 6: Final answer
    x = 67,298.81

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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.