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Finding the Fourth Proportional to 60,461.70, 90,603.81 and 30,434.64

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Solution

The fourth proportional to 60,461.70, 90,603.81 and 30,434.64 is: 45,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,461.70 : 90,603.81 = 30,434.64 : x
  2. Step 2: Convert to fraction form
    60,461.70/90,603.81 = 30,434.64/x
  3. Step 3: Cross multiply
    60,461.70x = 90,603.81 × 30,434.64
  4. Step 4: Simplify right side
    60,461.70x = 2,757,494,339.98
  5. Step 5: Solve for x
    x = 2,757,494,339.98/60,461.70
  6. Step 6: Final answer
    x = 45,607.29

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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.