Home / 69,702.72-96,219.18-47,072.40

Finding the Fourth Proportional to 69,702.72, 96,219.18 and 47,072.40

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Solution

The fourth proportional to 69,702.72, 96,219.18 and 47,072.40 is: 64,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,702.72 : 96,219.18 = 47,072.40 : x
  2. Step 2: Convert to fraction form
    69,702.72/96,219.18 = 47,072.40/x
  3. Step 3: Cross multiply
    69,702.72x = 96,219.18 × 47,072.40
  4. Step 4: Simplify right side
    69,702.72x = 4,529,267,728.63
  5. Step 5: Solve for x
    x = 4,529,267,728.63/69,702.72
  6. Step 6: Final answer
    x = 64,979.78

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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.