Home / 89,714.74-123,811.94-49,428.51

Finding the Fourth Proportional to 89,714.74, 123,811.94 and 49,428.51

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Solution

The fourth proportional to 89,714.74, 123,811.94 and 49,428.51 is: 68,214.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,714.74 : 123,811.94 = 49,428.51 : x
  2. Step 2: Convert to fraction form
    89,714.74/123,811.94 = 49,428.51/x
  3. Step 3: Cross multiply
    89,714.74x = 123,811.94 × 49,428.51
  4. Step 4: Simplify right side
    89,714.74x = 6,119,840,070.13
  5. Step 5: Solve for x
    x = 6,119,840,070.13/89,714.74
  6. Step 6: Final answer
    x = 68,214.43

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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.