Home / 71,019.09-97,976.55-49,812.21

Finding the Fourth Proportional to 71,019.09, 97,976.55 and 49,812.21

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Solution

The fourth proportional to 71,019.09, 97,976.55 and 49,812.21 is: 68,719.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,019.09 : 97,976.55 = 49,812.21 : x
  2. Step 2: Convert to fraction form
    71,019.09/97,976.55 = 49,812.21/x
  3. Step 3: Cross multiply
    71,019.09x = 97,976.55 × 49,812.21
  4. Step 4: Simplify right side
    71,019.09x = 4,880,428,483.68
  5. Step 5: Solve for x
    x = 4,880,428,483.68/71,019.09
  6. Step 6: Final answer
    x = 68,719.95

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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.