Home / 86,013.06-128,985.57-41,626.68

Finding the Fourth Proportional to 86,013.06, 128,985.57 and 41,626.68

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Solution

The fourth proportional to 86,013.06, 128,985.57 and 41,626.68 is: 62,423.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,013.06 : 128,985.57 = 41,626.68 : x
  2. Step 2: Convert to fraction form
    86,013.06/128,985.57 = 41,626.68/x
  3. Step 3: Cross multiply
    86,013.06x = 128,985.57 × 41,626.68
  4. Step 4: Simplify right side
    86,013.06x = 5,369,241,047.01
  5. Step 5: Solve for x
    x = 5,369,241,047.01/86,013.06
  6. Step 6: Final answer
    x = 62,423.56

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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.