Home / 52,015.20-78,022.80-39,573.60

Finding the Fourth Proportional to 52,015.20, 78,022.80 and 39,573.60

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Solution

The fourth proportional to 52,015.20, 78,022.80 and 39,573.60 is: 59,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,015.20 : 78,022.80 = 39,573.60 : x
  2. Step 2: Convert to fraction form
    52,015.20/78,022.80 = 39,573.60/x
  3. Step 3: Cross multiply
    52,015.20x = 78,022.80 × 39,573.60
  4. Step 4: Simplify right side
    52,015.20x = 3,087,643,078.08
  5. Step 5: Solve for x
    x = 3,087,643,078.08/52,015.20
  6. Step 6: Final answer
    x = 59,360.40

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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.