Home / 75,143.52-103,700.40-41,612.64

Finding the Fourth Proportional to 75,143.52, 103,700.40 and 41,612.64

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Solution

The fourth proportional to 75,143.52, 103,700.40 and 41,612.64 is: 57,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,143.52 : 103,700.40 = 41,612.64 : x
  2. Step 2: Convert to fraction form
    75,143.52/103,700.40 = 41,612.64/x
  3. Step 3: Cross multiply
    75,143.52x = 103,700.40 × 41,612.64
  4. Step 4: Simplify right side
    75,143.52x = 4,315,247,413.06
  5. Step 5: Solve for x
    x = 4,315,247,413.06/75,143.52
  6. Step 6: Final answer
    x = 57,426.74

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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.