Home / 98,878.83-136,451.70-53,555.69

Finding the Fourth Proportional to 98,878.83, 136,451.70 and 53,555.69

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Solution

The fourth proportional to 98,878.83, 136,451.70 and 53,555.69 is: 73,906.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,878.83 : 136,451.70 = 53,555.69 : x
  2. Step 2: Convert to fraction form
    98,878.83/136,451.70 = 53,555.69/x
  3. Step 3: Cross multiply
    98,878.83x = 136,451.70 × 53,555.69
  4. Step 4: Simplify right side
    98,878.83x = 7,307,764,262.91
  5. Step 5: Solve for x
    x = 7,307,764,262.91/98,878.83
  6. Step 6: Final answer
    x = 73,906.26

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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.