Home / 51,485.12-77,059.20-31,779.44

Finding the Fourth Proportional to 51,485.12, 77,059.20 and 31,779.44

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Solution

The fourth proportional to 51,485.12, 77,059.20 and 31,779.44 is: 47,565.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,485.12 : 77,059.20 = 31,779.44 : x
  2. Step 2: Convert to fraction form
    51,485.12/77,059.20 = 31,779.44/x
  3. Step 3: Cross multiply
    51,485.12x = 77,059.20 × 31,779.44
  4. Step 4: Simplify right side
    51,485.12x = 2,448,898,222.85
  5. Step 5: Solve for x
    x = 2,448,898,222.85/51,485.12
  6. Step 6: Final answer
    x = 47,565.16

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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.