Home / 82,975.71-124,464.03-20,646.21

Finding the Fourth Proportional to 82,975.71, 124,464.03 and 20,646.21

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Solution

The fourth proportional to 82,975.71, 124,464.03 and 20,646.21 is: 30,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,975.71 : 124,464.03 = 20,646.21 : x
  2. Step 2: Convert to fraction form
    82,975.71/124,464.03 = 20,646.21/x
  3. Step 3: Cross multiply
    82,975.71x = 124,464.03 × 20,646.21
  4. Step 4: Simplify right side
    82,975.71x = 2,569,710,500.83
  5. Step 5: Solve for x
    x = 2,569,710,500.83/82,975.71
  6. Step 6: Final answer
    x = 30,969.43

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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.