Home / 75,543.08-113,328.06-31,145.61

Finding the Fourth Proportional to 75,543.08, 113,328.06 and 31,145.61

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Solution

The fourth proportional to 75,543.08, 113,328.06 and 31,145.61 is: 46,723.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,543.08 : 113,328.06 = 31,145.61 : x
  2. Step 2: Convert to fraction form
    75,543.08/113,328.06 = 31,145.61/x
  3. Step 3: Cross multiply
    75,543.08x = 113,328.06 × 31,145.61
  4. Step 4: Simplify right side
    75,543.08x = 3,529,672,042.19
  5. Step 5: Solve for x
    x = 3,529,672,042.19/75,543.08
  6. Step 6: Final answer
    x = 46,723.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.