Home / 74,222.28-102,348.63-56,115.54

Finding the Fourth Proportional to 74,222.28, 102,348.63 and 56,115.54

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Solution

The fourth proportional to 74,222.28, 102,348.63 and 56,115.54 is: 77,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,222.28 : 102,348.63 = 56,115.54 : x
  2. Step 2: Convert to fraction form
    74,222.28/102,348.63 = 56,115.54/x
  3. Step 3: Cross multiply
    74,222.28x = 102,348.63 × 56,115.54
  4. Step 4: Simplify right side
    74,222.28x = 5,743,348,640.71
  5. Step 5: Solve for x
    x = 5,743,348,640.71/74,222.28
  6. Step 6: Final answer
    x = 77,380.39

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1.5x scale

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.