Home / 82,047.60-123,071.40-61,311.60

Finding the Fourth Proportional to 82,047.60, 123,071.40 and 61,311.60

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Solution

The fourth proportional to 82,047.60, 123,071.40 and 61,311.60 is: 91,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,047.60 : 123,071.40 = 61,311.60 : x
  2. Step 2: Convert to fraction form
    82,047.60/123,071.40 = 61,311.60/x
  3. Step 3: Cross multiply
    82,047.60x = 123,071.40 × 61,311.60
  4. Step 4: Simplify right side
    82,047.60x = 7,545,704,448.24
  5. Step 5: Solve for x
    x = 7,545,704,448.24/82,047.60
  6. Step 6: Final answer
    x = 91,967.40

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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.