Home / 89,763.49-123,873.87-53,974

Finding the Fourth Proportional to 89,763.49, 123,873.87 and 53,974

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Solution

The fourth proportional to 89,763.49, 123,873.87 and 53,974 is: 74,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,763.49 : 123,873.87 = 53,974 : x
  2. Step 2: Convert to fraction form
    89,763.49/123,873.87 = 53,974/x
  3. Step 3: Cross multiply
    89,763.49x = 123,873.87 × 53,974
  4. Step 4: Simplify right side
    89,763.49x = 6,685,968,259.38
  5. Step 5: Solve for x
    x = 6,685,968,259.38/89,763.49
  6. Step 6: Final answer
    x = 74,484.27

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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.