Home / 76,515.24-114,779.48-21,111.24

Finding the Fourth Proportional to 76,515.24, 114,779.48 and 21,111.24

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Solution

The fourth proportional to 76,515.24, 114,779.48 and 21,111.24 is: 31,668.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,515.24 : 114,779.48 = 21,111.24 : x
  2. Step 2: Convert to fraction form
    76,515.24/114,779.48 = 21,111.24/x
  3. Step 3: Cross multiply
    76,515.24x = 114,779.48 × 21,111.24
  4. Step 4: Simplify right side
    76,515.24x = 2,423,137,149.36
  5. Step 5: Solve for x
    x = 2,423,137,149.36/76,515.24
  6. Step 6: Final answer
    x = 31,668.69

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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.