Home / 71,012.28-98,028.09-47,159.40

Finding the Fourth Proportional to 71,012.28, 98,028.09 and 47,159.40

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Solution

The fourth proportional to 71,012.28, 98,028.09 and 47,159.40 is: 65,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,012.28 : 98,028.09 = 47,159.40 : x
  2. Step 2: Convert to fraction form
    71,012.28/98,028.09 = 47,159.40/x
  3. Step 3: Cross multiply
    71,012.28x = 98,028.09 × 47,159.40
  4. Step 4: Simplify right side
    71,012.28x = 4,622,945,907.55
  5. Step 5: Solve for x
    x = 4,622,945,907.55/71,012.28
  6. Step 6: Final answer
    x = 65,100.65

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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.