Home / 82,188.78-113,423.93-46,378.81

Finding the Fourth Proportional to 82,188.78, 113,423.93 and 46,378.81

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Solution

The fourth proportional to 82,188.78, 113,423.93 and 46,378.81 is: 64,004.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,188.78 : 113,423.93 = 46,378.81 : x
  2. Step 2: Convert to fraction form
    82,188.78/113,423.93 = 46,378.81/x
  3. Step 3: Cross multiply
    82,188.78x = 113,423.93 × 46,378.81
  4. Step 4: Simplify right side
    82,188.78x = 5,260,466,898.92
  5. Step 5: Solve for x
    x = 5,260,466,898.92/82,188.78
  6. Step 6: Final answer
    x = 64,004.68

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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.