Home / 88,157.79-121,678.92-50,453.91

Finding the Fourth Proportional to 88,157.79, 121,678.92 and 50,453.91

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Solution

The fourth proportional to 88,157.79, 121,678.92 and 50,453.91 is: 69,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,157.79 : 121,678.92 = 50,453.91 : x
  2. Step 2: Convert to fraction form
    88,157.79/121,678.92 = 50,453.91/x
  3. Step 3: Cross multiply
    88,157.79x = 121,678.92 × 50,453.91
  4. Step 4: Simplify right side
    88,157.79x = 6,139,177,278.58
  5. Step 5: Solve for x
    x = 6,139,177,278.58/88,157.79
  6. Step 6: Final answer
    x = 69,638.51

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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.