Home / 98,639.54-136,123.16-53,317.41

Finding the Fourth Proportional to 98,639.54, 136,123.16 and 53,317.41

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Solution

The fourth proportional to 98,639.54, 136,123.16 and 53,317.41 is: 73,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,639.54 : 136,123.16 = 53,317.41 : x
  2. Step 2: Convert to fraction form
    98,639.54/136,123.16 = 53,317.41/x
  3. Step 3: Cross multiply
    98,639.54x = 136,123.16 × 53,317.41
  4. Step 4: Simplify right side
    98,639.54x = 7,257,734,332.22
  5. Step 5: Solve for x
    x = 7,257,734,332.22/98,639.54
  6. Step 6: Final answer
    x = 73,578.35

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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.