Home / 81,007.43-121,459.15-33,655.23

Finding the Fourth Proportional to 81,007.43, 121,459.15 and 33,655.23

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Solution

The fourth proportional to 81,007.43, 121,459.15 and 33,655.23 is: 50,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,007.43 : 121,459.15 = 33,655.23 : x
  2. Step 2: Convert to fraction form
    81,007.43/121,459.15 = 33,655.23/x
  3. Step 3: Cross multiply
    81,007.43x = 121,459.15 × 33,655.23
  4. Step 4: Simplify right side
    81,007.43x = 4,087,735,994.02
  5. Step 5: Solve for x
    x = 4,087,735,994.02/81,007.43
  6. Step 6: Final answer
    x = 50,461.25

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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.