Home / 82,490.40-123,735.60-56,246.40

Finding the Fourth Proportional to 82,490.40, 123,735.60 and 56,246.40

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Solution

The fourth proportional to 82,490.40, 123,735.60 and 56,246.40 is: 84,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,490.40 : 123,735.60 = 56,246.40 : x
  2. Step 2: Convert to fraction form
    82,490.40/123,735.60 = 56,246.40/x
  3. Step 3: Cross multiply
    82,490.40x = 123,735.60 × 56,246.40
  4. Step 4: Simplify right side
    82,490.40x = 6,959,682,051.84
  5. Step 5: Solve for x
    x = 6,959,682,051.84/82,490.40
  6. Step 6: Final answer
    x = 84,369.60

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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.