Home / 45,102.86-67,652.89-21,427.45

Finding the Fourth Proportional to 45,102.86, 67,652.89 and 21,427.45

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Solution

The fourth proportional to 45,102.86, 67,652.89 and 21,427.45 is: 32,140.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,102.86 : 67,652.89 = 21,427.45 : x
  2. Step 2: Convert to fraction form
    45,102.86/67,652.89 = 21,427.45/x
  3. Step 3: Cross multiply
    45,102.86x = 67,652.89 × 21,427.45
  4. Step 4: Simplify right side
    45,102.86x = 1,449,628,917.83
  5. Step 5: Solve for x
    x = 1,449,628,917.83/45,102.86
  6. Step 6: Final answer
    x = 32,140.51

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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.