Home / 89,762.28-123,871.34-49,476.12

Finding the Fourth Proportional to 89,762.28, 123,871.34 and 49,476.12

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Solution

The fourth proportional to 89,762.28, 123,871.34 and 49,476.12 is: 68,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,762.28 : 123,871.34 = 49,476.12 : x
  2. Step 2: Convert to fraction form
    89,762.28/123,871.34 = 49,476.12/x
  3. Step 3: Cross multiply
    89,762.28x = 123,871.34 × 49,476.12
  4. Step 4: Simplify right side
    89,762.28x = 6,128,673,282.40
  5. Step 5: Solve for x
    x = 6,128,673,282.40/89,762.28
  6. Step 6: Final answer
    x = 68,276.71

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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.