Home / 74,532.20-102,856.74-40,543.16

Finding the Fourth Proportional to 74,532.20, 102,856.74 and 40,543.16

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Solution

The fourth proportional to 74,532.20, 102,856.74 and 40,543.16 is: 55,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,532.20 : 102,856.74 = 40,543.16 : x
  2. Step 2: Convert to fraction form
    74,532.20/102,856.74 = 40,543.16/x
  3. Step 3: Cross multiply
    74,532.20x = 102,856.74 × 40,543.16
  4. Step 4: Simplify right side
    74,532.20x = 4,170,137,266.90
  5. Step 5: Solve for x
    x = 4,170,137,266.90/74,532.20
  6. Step 6: Final answer
    x = 55,950.81

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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.