Home / 82,977.06-124,465.61-20,647.56

Finding the Fourth Proportional to 82,977.06, 124,465.61 and 20,647.56

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Solution

The fourth proportional to 82,977.06, 124,465.61 and 20,647.56 is: 30,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,977.06 : 124,465.61 = 20,647.56 : x
  2. Step 2: Convert to fraction form
    82,977.06/124,465.61 = 20,647.56/x
  3. Step 3: Cross multiply
    82,977.06x = 124,465.61 × 20,647.56
  4. Step 4: Simplify right side
    82,977.06x = 2,569,911,150.41
  5. Step 5: Solve for x
    x = 2,569,911,150.41/82,977.06
  6. Step 6: Final answer
    x = 30,971.34

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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.