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Finding the Fourth Proportional to 69,077.34, 103,616.01 and 45,698.31

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Solution

The fourth proportional to 69,077.34, 103,616.01 and 45,698.31 is: 68,547.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,077.34 : 103,616.01 = 45,698.31 : x
  2. Step 2: Convert to fraction form
    69,077.34/103,616.01 = 45,698.31/x
  3. Step 3: Cross multiply
    69,077.34x = 103,616.01 × 45,698.31
  4. Step 4: Simplify right side
    69,077.34x = 4,735,076,545.94
  5. Step 5: Solve for x
    x = 4,735,076,545.94/69,077.34
  6. Step 6: Final answer
    x = 68,547.47

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1.5x scale

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.