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Finding the Fourth Proportional to 60,435, 90,364.02 and 55,141.32

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Solution

The fourth proportional to 60,435, 90,364.02 and 55,141.32 is: 82,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,435 : 90,364.02 = 55,141.32 : x
  2. Step 2: Convert to fraction form
    60,435/90,364.02 = 55,141.32/x
  3. Step 3: Cross multiply
    60,435x = 90,364.02 × 55,141.32
  4. Step 4: Simplify right side
    60,435x = 4,982,791,343.31
  5. Step 5: Solve for x
    x = 4,982,791,343.31/60,435
  6. Step 6: Final answer
    x = 82,448.77

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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.