Home / 86,410.10-129,615.15-49,085.30

Finding the Fourth Proportional to 86,410.10, 129,615.15 and 49,085.30

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Solution

The fourth proportional to 86,410.10, 129,615.15 and 49,085.30 is: 73,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,410.10 : 129,615.15 = 49,085.30 : x
  2. Step 2: Convert to fraction form
    86,410.10/129,615.15 = 49,085.30/x
  3. Step 3: Cross multiply
    86,410.10x = 129,615.15 × 49,085.30
  4. Step 4: Simplify right side
    86,410.10x = 6,362,198,522.30
  5. Step 5: Solve for x
    x = 6,362,198,522.30/86,410.10
  6. Step 6: Final answer
    x = 73,627.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.