Home / 98,077.10-135,345.13-57,792.56

Finding the Fourth Proportional to 98,077.10, 135,345.13 and 57,792.56

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Solution

The fourth proportional to 98,077.10, 135,345.13 and 57,792.56 is: 79,752.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,077.10 : 135,345.13 = 57,792.56 : x
  2. Step 2: Convert to fraction form
    98,077.10/135,345.13 = 57,792.56/x
  3. Step 3: Cross multiply
    98,077.10x = 135,345.13 × 57,792.56
  4. Step 4: Simplify right side
    98,077.10x = 7,821,940,725.03
  5. Step 5: Solve for x
    x = 7,821,940,725.03/98,077.10
  6. Step 6: Final answer
    x = 79,752.98

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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.