Home / 77,847.24-107,409.42-47,621.52

Finding the Fourth Proportional to 77,847.24, 107,409.42 and 47,621.52

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Solution

The fourth proportional to 77,847.24, 107,409.42 and 47,621.52 is: 65,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,847.24 : 107,409.42 = 47,621.52 : x
  2. Step 2: Convert to fraction form
    77,847.24/107,409.42 = 47,621.52/x
  3. Step 3: Cross multiply
    77,847.24x = 107,409.42 × 47,621.52
  4. Step 4: Simplify right side
    77,847.24x = 5,114,999,842.72
  5. Step 5: Solve for x
    x = 5,114,999,842.72/77,847.24
  6. Step 6: Final answer
    x = 65,705.60

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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.