Home / 89,690.63-123,772.32-53,416.94

Finding the Fourth Proportional to 89,690.63, 123,772.32 and 53,416.94

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Solution

The fourth proportional to 89,690.63, 123,772.32 and 53,416.94 is: 73,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,690.63 : 123,772.32 = 53,416.94 : x
  2. Step 2: Convert to fraction form
    89,690.63/123,772.32 = 53,416.94/x
  3. Step 3: Cross multiply
    89,690.63x = 123,772.32 × 53,416.94
  4. Step 4: Simplify right side
    89,690.63x = 6,611,537,972.24
  5. Step 5: Solve for x
    x = 6,611,537,972.24/89,690.63
  6. Step 6: Final answer
    x = 73,714.93

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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.