Home / 45,420.26-68,130.40-14,255.50

Finding the Fourth Proportional to 45,420.26, 68,130.40 and 14,255.50

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Solution

The fourth proportional to 45,420.26, 68,130.40 and 14,255.50 is: 21,383.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.26 : 68,130.40 = 14,255.50 : x
  2. Step 2: Convert to fraction form
    45,420.26/68,130.40 = 14,255.50/x
  3. Step 3: Cross multiply
    45,420.26x = 68,130.40 × 14,255.50
  4. Step 4: Simplify right side
    45,420.26x = 971,232,917.20
  5. Step 5: Solve for x
    x = 971,232,917.20/45,420.26
  6. Step 6: Final answer
    x = 21,383.25

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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.