Home / 71,458.15-98,605.78-39,626.95

Finding the Fourth Proportional to 71,458.15, 98,605.78 and 39,626.95

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Solution

The fourth proportional to 71,458.15, 98,605.78 and 39,626.95 is: 54,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,458.15 : 98,605.78 = 39,626.95 : x
  2. Step 2: Convert to fraction form
    71,458.15/98,605.78 = 39,626.95/x
  3. Step 3: Cross multiply
    71,458.15x = 98,605.78 × 39,626.95
  4. Step 4: Simplify right side
    71,458.15x = 3,907,446,313.77
  5. Step 5: Solve for x
    x = 3,907,446,313.77/71,458.15
  6. Step 6: Final answer
    x = 54,681.60

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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.