Home / 81,221.43-112,076.40-45,410.25

Finding the Fourth Proportional to 81,221.43, 112,076.40 and 45,410.25

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Solution

The fourth proportional to 81,221.43, 112,076.40 and 45,410.25 is: 62,661.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,221.43 : 112,076.40 = 45,410.25 : x
  2. Step 2: Convert to fraction form
    81,221.43/112,076.40 = 45,410.25/x
  3. Step 3: Cross multiply
    81,221.43x = 112,076.40 × 45,410.25
  4. Step 4: Simplify right side
    81,221.43x = 5,089,417,343.10
  5. Step 5: Solve for x
    x = 5,089,417,343.10/81,221.43
  6. Step 6: Final answer
    x = 62,661.02

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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.