Home / 56,630.77-78,148.44-31,136.97

Finding the Fourth Proportional to 56,630.77, 78,148.44 and 31,136.97

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Solution

The fourth proportional to 56,630.77, 78,148.44 and 31,136.97 is: 42,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,630.77 : 78,148.44 = 31,136.97 : x
  2. Step 2: Convert to fraction form
    56,630.77/78,148.44 = 31,136.97/x
  3. Step 3: Cross multiply
    56,630.77x = 78,148.44 × 31,136.97
  4. Step 4: Simplify right side
    56,630.77x = 2,433,305,631.83
  5. Step 5: Solve for x
    x = 2,433,305,631.83/56,630.77
  6. Step 6: Final answer
    x = 42,967.91

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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.