Home / 74,643.12-103,002.78-41,109.12

Finding the Fourth Proportional to 74,643.12, 103,002.78 and 41,109.12

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Solution

The fourth proportional to 74,643.12, 103,002.78 and 41,109.12 is: 56,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,643.12 : 103,002.78 = 41,109.12 : x
  2. Step 2: Convert to fraction form
    74,643.12/103,002.78 = 41,109.12/x
  3. Step 3: Cross multiply
    74,643.12x = 103,002.78 × 41,109.12
  4. Step 4: Simplify right side
    74,643.12x = 4,234,353,643.35
  5. Step 5: Solve for x
    x = 4,234,353,643.35/74,643.12
  6. Step 6: Final answer
    x = 56,727.98

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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.