Home / 99,664.08-137,537.50-54,341.68

Finding the Fourth Proportional to 99,664.08, 137,537.50 and 54,341.68

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Solution

The fourth proportional to 99,664.08, 137,537.50 and 54,341.68 is: 74,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664.08 : 137,537.50 = 54,341.68 : x
  2. Step 2: Convert to fraction form
    99,664.08/137,537.50 = 54,341.68/x
  3. Step 3: Cross multiply
    99,664.08x = 137,537.50 × 54,341.68
  4. Step 4: Simplify right side
    99,664.08x = 7,474,018,813
  5. Step 5: Solve for x
    x = 7,474,018,813/99,664.08
  6. Step 6: Final answer
    x = 74,992.10

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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.