Home / 76,779.52-115,152.96-32,389.12

Finding the Fourth Proportional to 76,779.52, 115,152.96 and 32,389.12

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Solution

The fourth proportional to 76,779.52, 115,152.96 and 32,389.12 is: 48,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,779.52 : 115,152.96 = 32,389.12 : x
  2. Step 2: Convert to fraction form
    76,779.52/115,152.96 = 32,389.12/x
  3. Step 3: Cross multiply
    76,779.52x = 115,152.96 × 32,389.12
  4. Step 4: Simplify right side
    76,779.52x = 3,729,703,039.80
  5. Step 5: Solve for x
    x = 3,729,703,039.80/76,779.52
  6. Step 6: Final answer
    x = 48,576.80

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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.