Home / 99,663.08-137,568.37-59,389.47

Finding the Fourth Proportional to 99,663.08, 137,568.37 and 59,389.47

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Solution

The fourth proportional to 99,663.08, 137,568.37 and 59,389.47 is: 81,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,663.08 : 137,568.37 = 59,389.47 : x
  2. Step 2: Convert to fraction form
    99,663.08/137,568.37 = 59,389.47/x
  3. Step 3: Cross multiply
    99,663.08x = 137,568.37 × 59,389.47
  4. Step 4: Simplify right side
    99,663.08x = 8,170,112,583.06
  5. Step 5: Solve for x
    x = 8,170,112,583.06/99,663.08
  6. Step 6: Final answer
    x = 81,977.33

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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.