Home / 98,790.93-136,331.51-54,078.93

Finding the Fourth Proportional to 98,790.93, 136,331.51 and 54,078.93

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Solution

The fourth proportional to 98,790.93, 136,331.51 and 54,078.93 is: 74,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,790.93 : 136,331.51 = 54,078.93 : x
  2. Step 2: Convert to fraction form
    98,790.93/136,331.51 = 54,078.93/x
  3. Step 3: Cross multiply
    98,790.93x = 136,331.51 × 54,078.93
  4. Step 4: Simplify right side
    98,790.93x = 7,372,661,915.69
  5. Step 5: Solve for x
    x = 7,372,661,915.69/98,790.93
  6. Step 6: Final answer
    x = 74,628.94

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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.