Home / 74,423.40-102,705.01-40,432.15

Finding the Fourth Proportional to 74,423.40, 102,705.01 and 40,432.15

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Solution

The fourth proportional to 74,423.40, 102,705.01 and 40,432.15 is: 55,796.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,423.40 : 102,705.01 = 40,432.15 : x
  2. Step 2: Convert to fraction form
    74,423.40/102,705.01 = 40,432.15/x
  3. Step 3: Cross multiply
    74,423.40x = 102,705.01 × 40,432.15
  4. Step 4: Simplify right side
    74,423.40x = 4,152,584,370.07
  5. Step 5: Solve for x
    x = 4,152,584,370.07/74,423.40
  6. Step 6: Final answer
    x = 55,796.76

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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.