Home / 74,271.92-102,494.81-40,280.07

Finding the Fourth Proportional to 74,271.92, 102,494.81 and 40,280.07

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Solution

The fourth proportional to 74,271.92, 102,494.81 and 40,280.07 is: 55,586.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,271.92 : 102,494.81 = 40,280.07 : x
  2. Step 2: Convert to fraction form
    74,271.92/102,494.81 = 40,280.07/x
  3. Step 3: Cross multiply
    74,271.92x = 102,494.81 × 40,280.07
  4. Step 4: Simplify right side
    74,271.92x = 4,128,497,920.04
  5. Step 5: Solve for x
    x = 4,128,497,920.04/74,271.92
  6. Step 6: Final answer
    x = 55,586.26

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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.