Home / 82,782.26-114,239.50-45,056.78

Finding the Fourth Proportional to 82,782.26, 114,239.50 and 45,056.78

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Solution

The fourth proportional to 82,782.26, 114,239.50 and 45,056.78 is: 62,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,782.26 : 114,239.50 = 45,056.78 : x
  2. Step 2: Convert to fraction form
    82,782.26/114,239.50 = 45,056.78/x
  3. Step 3: Cross multiply
    82,782.26x = 114,239.50 × 45,056.78
  4. Step 4: Simplify right side
    82,782.26x = 5,147,264,018.81
  5. Step 5: Solve for x
    x = 5,147,264,018.81/82,782.26
  6. Step 6: Final answer
    x = 62,178.35

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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.