Home / 88,159.68-121,658.18-50,431.50

Finding the Fourth Proportional to 88,159.68, 121,658.18 and 50,431.50

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Solution

The fourth proportional to 88,159.68, 121,658.18 and 50,431.50 is: 69,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,159.68 : 121,658.18 = 50,431.50 : x
  2. Step 2: Convert to fraction form
    88,159.68/121,658.18 = 50,431.50/x
  3. Step 3: Cross multiply
    88,159.68x = 121,658.18 × 50,431.50
  4. Step 4: Simplify right side
    88,159.68x = 6,135,404,252.51
  5. Step 5: Solve for x
    x = 6,135,404,252.51/88,159.68
  6. Step 6: Final answer
    x = 69,594.22

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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.