Home / 98,880.67-136,431.70-58,587.47

Finding the Fourth Proportional to 98,880.67, 136,431.70 and 58,587.47

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Solution

The fourth proportional to 98,880.67, 136,431.70 and 58,587.47 is: 80,836.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,880.67 : 136,431.70 = 58,587.47 : x
  2. Step 2: Convert to fraction form
    98,880.67/136,431.70 = 58,587.47/x
  3. Step 3: Cross multiply
    98,880.67x = 136,431.70 × 58,587.47
  4. Step 4: Simplify right side
    98,880.67x = 7,993,188,130.80
  5. Step 5: Solve for x
    x = 7,993,188,130.80/98,880.67
  6. Step 6: Final answer
    x = 80,836.71

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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.