Home / 98,842.85-136,403.20-53,520.86

Finding the Fourth Proportional to 98,842.85, 136,403.20 and 53,520.86

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Solution

The fourth proportional to 98,842.85, 136,403.20 and 53,520.86 is: 73,858.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,842.85 : 136,403.20 = 53,520.86 : x
  2. Step 2: Convert to fraction form
    98,842.85/136,403.20 = 53,520.86/x
  3. Step 3: Cross multiply
    98,842.85x = 136,403.20 × 53,520.86
  4. Step 4: Simplify right side
    98,842.85x = 7,300,416,095.94
  5. Step 5: Solve for x
    x = 7,300,416,095.94/98,842.85
  6. Step 6: Final answer
    x = 73,858.82

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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.