Home / 47,118.87-65,039.20-30,168.77

Finding the Fourth Proportional to 47,118.87, 65,039.20 and 30,168.77

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Solution

The fourth proportional to 47,118.87, 65,039.20 and 30,168.77 is: 41,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,118.87 : 65,039.20 = 30,168.77 : x
  2. Step 2: Convert to fraction form
    47,118.87/65,039.20 = 30,168.77/x
  3. Step 3: Cross multiply
    47,118.87x = 65,039.20 × 30,168.77
  4. Step 4: Simplify right side
    47,118.87x = 1,962,152,427.76
  5. Step 5: Solve for x
    x = 1,962,152,427.76/47,118.87
  6. Step 6: Final answer
    x = 41,642.60

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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.