Home / 91,626.40-126,438.48-53,893.36

Finding the Fourth Proportional to 91,626.40, 126,438.48 and 53,893.36

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Solution

The fourth proportional to 91,626.40, 126,438.48 and 53,893.36 is: 74,369.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,626.40 : 126,438.48 = 53,893.36 : x
  2. Step 2: Convert to fraction form
    91,626.40/126,438.48 = 53,893.36/x
  3. Step 3: Cross multiply
    91,626.40x = 126,438.48 × 53,893.36
  4. Step 4: Simplify right side
    91,626.40x = 6,814,194,520.49
  5. Step 5: Solve for x
    x = 6,814,194,520.49/91,626.40
  6. Step 6: Final answer
    x = 74,369.34

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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.