Home / 87,835.53-121,212.32-47,548.47

Finding the Fourth Proportional to 87,835.53, 121,212.32 and 47,548.47

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Solution

The fourth proportional to 87,835.53, 121,212.32 and 47,548.47 is: 65,616.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,835.53 : 121,212.32 = 47,548.47 : x
  2. Step 2: Convert to fraction form
    87,835.53/121,212.32 = 47,548.47/x
  3. Step 3: Cross multiply
    87,835.53x = 121,212.32 × 47,548.47
  4. Step 4: Simplify right side
    87,835.53x = 5,763,460,123.41
  5. Step 5: Solve for x
    x = 5,763,460,123.41/87,835.53
  6. Step 6: Final answer
    x = 65,616.50

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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.