Home / 98,760.14-136,288.71-53,438.89

Finding the Fourth Proportional to 98,760.14, 136,288.71 and 53,438.89

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Solution

The fourth proportional to 98,760.14, 136,288.71 and 53,438.89 is: 73,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,760.14 : 136,288.71 = 53,438.89 : x
  2. Step 2: Convert to fraction form
    98,760.14/136,288.71 = 53,438.89/x
  3. Step 3: Cross multiply
    98,760.14x = 136,288.71 × 53,438.89
  4. Step 4: Simplify right side
    98,760.14x = 7,283,117,522.20
  5. Step 5: Solve for x
    x = 7,283,117,522.20/98,760.14
  6. Step 6: Final answer
    x = 73,745.52

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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.