Home / 49,071.40-67,719.78-30,212.20

Finding the Fourth Proportional to 49,071.40, 67,719.78 and 30,212.20

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Solution

The fourth proportional to 49,071.40, 67,719.78 and 30,212.20 is: 41,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,071.40 : 67,719.78 = 30,212.20 : x
  2. Step 2: Convert to fraction form
    49,071.40/67,719.78 = 30,212.20/x
  3. Step 3: Cross multiply
    49,071.40x = 67,719.78 × 30,212.20
  4. Step 4: Simplify right side
    49,071.40x = 2,045,963,537.32
  5. Step 5: Solve for x
    x = 2,045,963,537.32/49,071.40
  6. Step 6: Final answer
    x = 41,693.60

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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.