Home / 82,653.40-123,980.10-43,222.60

Finding the Fourth Proportional to 82,653.40, 123,980.10 and 43,222.60

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Solution

The fourth proportional to 82,653.40, 123,980.10 and 43,222.60 is: 64,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,653.40 : 123,980.10 = 43,222.60 : x
  2. Step 2: Convert to fraction form
    82,653.40/123,980.10 = 43,222.60/x
  3. Step 3: Cross multiply
    82,653.40x = 123,980.10 × 43,222.60
  4. Step 4: Simplify right side
    82,653.40x = 5,358,742,270.26
  5. Step 5: Solve for x
    x = 5,358,742,270.26/82,653.40
  6. Step 6: Final answer
    x = 64,833.90

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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.