Home / 88,342.08-121,909.68-50,108.64

Finding the Fourth Proportional to 88,342.08, 121,909.68 and 50,108.64

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Solution

The fourth proportional to 88,342.08, 121,909.68 and 50,108.64 is: 69,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,342.08 : 121,909.68 = 50,108.64 : x
  2. Step 2: Convert to fraction form
    88,342.08/121,909.68 = 50,108.64/x
  3. Step 3: Cross multiply
    88,342.08x = 121,909.68 × 50,108.64
  4. Step 4: Simplify right side
    88,342.08x = 6,108,728,267.64
  5. Step 5: Solve for x
    x = 6,108,728,267.64/88,342.08
  6. Step 6: Final answer
    x = 69,148.57

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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.