Home / 74,210.23-102,408.95-40,218.42

Finding the Fourth Proportional to 74,210.23, 102,408.95 and 40,218.42

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Solution

The fourth proportional to 74,210.23, 102,408.95 and 40,218.42 is: 55,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,210.23 : 102,408.95 = 40,218.42 : x
  2. Step 2: Convert to fraction form
    74,210.23/102,408.95 = 40,218.42/x
  3. Step 3: Cross multiply
    74,210.23x = 102,408.95 × 40,218.42
  4. Step 4: Simplify right side
    74,210.23x = 4,118,726,162.86
  5. Step 5: Solve for x
    x = 4,118,726,162.86/74,210.23
  6. Step 6: Final answer
    x = 55,500.79

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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.