Home / 57,178.08-78,837.12-49,206.60

Finding the Fourth Proportional to 57,178.08, 78,837.12 and 49,206.60

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Solution

The fourth proportional to 57,178.08, 78,837.12 and 49,206.60 is: 67,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,178.08 : 78,837.12 = 49,206.60 : x
  2. Step 2: Convert to fraction form
    57,178.08/78,837.12 = 49,206.60/x
  3. Step 3: Cross multiply
    57,178.08x = 78,837.12 × 49,206.60
  4. Step 4: Simplify right side
    57,178.08x = 3,879,306,628.99
  5. Step 5: Solve for x
    x = 3,879,306,628.99/57,178.08
  6. Step 6: Final answer
    x = 67,846.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.