Home / 98,789.90-136,328.88-53,466.81

Finding the Fourth Proportional to 98,789.90, 136,328.88 and 53,466.81

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Solution

The fourth proportional to 98,789.90, 136,328.88 and 53,466.81 is: 73,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,789.90 : 136,328.88 = 53,466.81 : x
  2. Step 2: Convert to fraction form
    98,789.90/136,328.88 = 53,466.81/x
  3. Step 3: Cross multiply
    98,789.90x = 136,328.88 × 53,466.81
  4. Step 4: Simplify right side
    98,789.90x = 7,289,070,324.47
  5. Step 5: Solve for x
    x = 7,289,070,324.47/98,789.90
  6. Step 6: Final answer
    x = 73,783.56

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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.