Home / 81,935.04-122,898.24-40,368

Finding the Fourth Proportional to 81,935.04, 122,898.24 and 40,368

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Solution

The fourth proportional to 81,935.04, 122,898.24 and 40,368 is: 60,549.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,935.04 : 122,898.24 = 40,368 : x
  2. Step 2: Convert to fraction form
    81,935.04/122,898.24 = 40,368/x
  3. Step 3: Cross multiply
    81,935.04x = 122,898.24 × 40,368
  4. Step 4: Simplify right side
    81,935.04x = 4,961,156,152.32
  5. Step 5: Solve for x
    x = 4,961,156,152.32/81,935.04
  6. Step 6: Final answer
    x = 60,549.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.