Home / 79,734.04-109,990.74-47,445.72

Finding the Fourth Proportional to 79,734.04, 109,990.74 and 47,445.72

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Solution

The fourth proportional to 79,734.04, 109,990.74 and 47,445.72 is: 65,449.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,734.04 : 109,990.74 = 47,445.72 : x
  2. Step 2: Convert to fraction form
    79,734.04/109,990.74 = 47,445.72/x
  3. Step 3: Cross multiply
    79,734.04x = 109,990.74 × 47,445.72
  4. Step 4: Simplify right side
    79,734.04x = 5,218,589,852.63
  5. Step 5: Solve for x
    x = 5,218,589,852.63/79,734.04
  6. Step 6: Final answer
    x = 65,449.96

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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.