Home / 74,389.08-102,688.36-50,222.78

Finding the Fourth Proportional to 74,389.08, 102,688.36 and 50,222.78

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Solution

The fourth proportional to 74,389.08, 102,688.36 and 50,222.78 is: 69,328.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,389.08 : 102,688.36 = 50,222.78 : x
  2. Step 2: Convert to fraction form
    74,389.08/102,688.36 = 50,222.78/x
  3. Step 3: Cross multiply
    74,389.08x = 102,688.36 × 50,222.78
  4. Step 4: Simplify right side
    74,389.08x = 5,157,294,658.92
  5. Step 5: Solve for x
    x = 5,157,294,658.92/74,389.08
  6. Step 6: Final answer
    x = 69,328.65

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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.