Home / 88,342.56-121,912.68-50,638.68

Finding the Fourth Proportional to 88,342.56, 121,912.68 and 50,638.68

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Solution

The fourth proportional to 88,342.56, 121,912.68 and 50,638.68 is: 69,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,342.56 : 121,912.68 = 50,638.68 : x
  2. Step 2: Convert to fraction form
    88,342.56/121,912.68 = 50,638.68/x
  3. Step 3: Cross multiply
    88,342.56x = 121,912.68 × 50,638.68
  4. Step 4: Simplify right side
    88,342.56x = 6,173,497,190.46
  5. Step 5: Solve for x
    x = 6,173,497,190.46/88,342.56
  6. Step 6: Final answer
    x = 69,881.35

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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.