Home / 71,022.12-97,980.72-49,815.24

Finding the Fourth Proportional to 71,022.12, 97,980.72 and 49,815.24

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Solution

The fourth proportional to 71,022.12, 97,980.72 and 49,815.24 is: 68,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,022.12 : 97,980.72 = 49,815.24 : x
  2. Step 2: Convert to fraction form
    71,022.12/97,980.72 = 49,815.24/x
  3. Step 3: Cross multiply
    71,022.12x = 97,980.72 × 49,815.24
  4. Step 4: Simplify right side
    71,022.12x = 4,880,933,082.17
  5. Step 5: Solve for x
    x = 4,880,933,082.17/71,022.12
  6. Step 6: Final answer
    x = 68,724.13

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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.