Home / 74,190.32-102,381.54-40,197.86

Finding the Fourth Proportional to 74,190.32, 102,381.54 and 40,197.86

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Solution

The fourth proportional to 74,190.32, 102,381.54 and 40,197.86 is: 55,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,190.32 : 102,381.54 = 40,197.86 : x
  2. Step 2: Convert to fraction form
    74,190.32/102,381.54 = 40,197.86/x
  3. Step 3: Cross multiply
    74,190.32x = 102,381.54 × 40,197.86
  4. Step 4: Simplify right side
    74,190.32x = 4,115,518,811.50
  5. Step 5: Solve for x
    x = 4,115,518,811.50/74,190.32
  6. Step 6: Final answer
    x = 55,472.45

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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.