Home / 84,130.53-126,219.64-34,246.43

Finding the Fourth Proportional to 84,130.53, 126,219.64 and 34,246.43

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Solution

The fourth proportional to 84,130.53, 126,219.64 and 34,246.43 is: 51,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,130.53 : 126,219.64 = 34,246.43 : x
  2. Step 2: Convert to fraction form
    84,130.53/126,219.64 = 34,246.43/x
  3. Step 3: Cross multiply
    84,130.53x = 126,219.64 × 34,246.43
  4. Step 4: Simplify right side
    84,130.53x = 4,322,571,434.79
  5. Step 5: Solve for x
    x = 4,322,571,434.79/84,130.53
  6. Step 6: Final answer
    x = 51,379.34

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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.