Home / 38,779.20-58,039.20-34,113.60

Finding the Fourth Proportional to 38,779.20, 58,039.20 and 34,113.60

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Solution

The fourth proportional to 38,779.20, 58,039.20 and 34,113.60 is: 51,056.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779.20 : 58,039.20 = 34,113.60 : x
  2. Step 2: Convert to fraction form
    38,779.20/58,039.20 = 34,113.60/x
  3. Step 3: Cross multiply
    38,779.20x = 58,039.20 × 34,113.60
  4. Step 4: Simplify right side
    38,779.20x = 1,979,926,053.12
  5. Step 5: Solve for x
    x = 1,979,926,053.12/38,779.20
  6. Step 6: Final answer
    x = 51,056.39

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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.