Home / 87,845.33-121,225.08-47,558.76

Finding the Fourth Proportional to 87,845.33, 121,225.08 and 47,558.76

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Solution

The fourth proportional to 87,845.33, 121,225.08 and 47,558.76 is: 65,630.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,845.33 : 121,225.08 = 47,558.76 : x
  2. Step 2: Convert to fraction form
    87,845.33/121,225.08 = 47,558.76/x
  3. Step 3: Cross multiply
    87,845.33x = 121,225.08 × 47,558.76
  4. Step 4: Simplify right side
    87,845.33x = 5,765,314,485.70
  5. Step 5: Solve for x
    x = 5,765,314,485.70/87,845.33
  6. Step 6: Final answer
    x = 65,630.29

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1.5x scale

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.