Home / 74,228.70-102,442.08-40,701.18

Finding the Fourth Proportional to 74,228.70, 102,442.08 and 40,701.18

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Solution

The fourth proportional to 74,228.70, 102,442.08 and 40,701.18 is: 56,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,228.70 : 102,442.08 = 40,701.18 : x
  2. Step 2: Convert to fraction form
    74,228.70/102,442.08 = 40,701.18/x
  3. Step 3: Cross multiply
    74,228.70x = 102,442.08 × 40,701.18
  4. Step 4: Simplify right side
    74,228.70x = 4,169,513,537.65
  5. Step 5: Solve for x
    x = 4,169,513,537.65/74,228.70
  6. Step 6: Final answer
    x = 56,171.18

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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.