Home / 74,583.40-111,875.10-61,408.09

Finding the Fourth Proportional to 74,583.40, 111,875.10 and 61,408.09

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Solution

The fourth proportional to 74,583.40, 111,875.10 and 61,408.09 is: 92,112.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,583.40 : 111,875.10 = 61,408.09 : x
  2. Step 2: Convert to fraction form
    74,583.40/111,875.10 = 61,408.09/x
  3. Step 3: Cross multiply
    74,583.40x = 111,875.10 × 61,408.09
  4. Step 4: Simplify right side
    74,583.40x = 6,870,036,209.56
  5. Step 5: Solve for x
    x = 6,870,036,209.56/74,583.40
  6. Step 6: Final answer
    x = 92,112.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.