Home / 98,829.79-136,386.21-53,508.76

Finding the Fourth Proportional to 98,829.79, 136,386.21 and 53,508.76

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Solution

The fourth proportional to 98,829.79, 136,386.21 and 53,508.76 is: 73,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,829.79 : 136,386.21 = 53,508.76 : x
  2. Step 2: Convert to fraction form
    98,829.79/136,386.21 = 53,508.76/x
  3. Step 3: Cross multiply
    98,829.79x = 136,386.21 × 53,508.76
  4. Step 4: Simplify right side
    98,829.79x = 7,297,856,978.20
  5. Step 5: Solve for x
    x = 7,297,856,978.20/98,829.79
  6. Step 6: Final answer
    x = 73,842.68

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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.