Home / 81,723.60-122,585.40-46,731.60

Finding the Fourth Proportional to 81,723.60, 122,585.40 and 46,731.60

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Solution

The fourth proportional to 81,723.60, 122,585.40 and 46,731.60 is: 70,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,723.60 : 122,585.40 = 46,731.60 : x
  2. Step 2: Convert to fraction form
    81,723.60/122,585.40 = 46,731.60/x
  3. Step 3: Cross multiply
    81,723.60x = 122,585.40 × 46,731.60
  4. Step 4: Simplify right side
    81,723.60x = 5,728,611,878.64
  5. Step 5: Solve for x
    x = 5,728,611,878.64/81,723.60
  6. Step 6: Final answer
    x = 70,097.40

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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.