Home / 40,080.61-60,120.31-13,785.58

Finding the Fourth Proportional to 40,080.61, 60,120.31 and 13,785.58

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Solution

The fourth proportional to 40,080.61, 60,120.31 and 13,785.58 is: 20,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,080.61 : 60,120.31 = 13,785.58 : x
  2. Step 2: Convert to fraction form
    40,080.61/60,120.31 = 13,785.58/x
  3. Step 3: Cross multiply
    40,080.61x = 60,120.31 × 13,785.58
  4. Step 4: Simplify right side
    40,080.61x = 828,793,274.20
  5. Step 5: Solve for x
    x = 828,793,274.20/40,080.61
  6. Step 6: Final answer
    x = 20,678.16

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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.