Home / 89,378.63-123,340.77-49,091.45

Finding the Fourth Proportional to 89,378.63, 123,340.77 and 49,091.45

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Solution

The fourth proportional to 89,378.63, 123,340.77 and 49,091.45 is: 67,745.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,378.63 : 123,340.77 = 49,091.45 : x
  2. Step 2: Convert to fraction form
    89,378.63/123,340.77 = 49,091.45/x
  3. Step 3: Cross multiply
    89,378.63x = 123,340.77 × 49,091.45
  4. Step 4: Simplify right side
    89,378.63x = 6,054,977,551.77
  5. Step 5: Solve for x
    x = 6,054,977,551.77/89,378.63
  6. Step 6: Final answer
    x = 67,745.25

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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.