Home / 74,622.92-102,977.07-40,630.86

Finding the Fourth Proportional to 74,622.92, 102,977.07 and 40,630.86

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Solution

The fourth proportional to 74,622.92, 102,977.07 and 40,630.86 is: 56,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.92 : 102,977.07 = 40,630.86 : x
  2. Step 2: Convert to fraction form
    74,622.92/102,977.07 = 40,630.86/x
  3. Step 3: Cross multiply
    74,622.92x = 102,977.07 × 40,630.86
  4. Step 4: Simplify right side
    74,622.92x = 4,184,046,914.38
  5. Step 5: Solve for x
    x = 4,184,046,914.38/74,622.92
  6. Step 6: Final answer
    x = 56,069.19

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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.