Home / 98,581.89-136,043.09-53,259.86

Finding the Fourth Proportional to 98,581.89, 136,043.09 and 53,259.86

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Solution

The fourth proportional to 98,581.89, 136,043.09 and 53,259.86 is: 73,498.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,581.89 : 136,043.09 = 53,259.86 : x
  2. Step 2: Convert to fraction form
    98,581.89/136,043.09 = 53,259.86/x
  3. Step 3: Cross multiply
    98,581.89x = 136,043.09 × 53,259.86
  4. Step 4: Simplify right side
    98,581.89x = 7,245,634,980.85
  5. Step 5: Solve for x
    x = 7,245,634,980.85/98,581.89
  6. Step 6: Final answer
    x = 73,498.64

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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.