Home / 49,439.12-74,158.68-13,903.60

Finding the Fourth Proportional to 49,439.12, 74,158.68 and 13,903.60

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Solution

The fourth proportional to 49,439.12, 74,158.68 and 13,903.60 is: 20,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,439.12 : 74,158.68 = 13,903.60 : x
  2. Step 2: Convert to fraction form
    49,439.12/74,158.68 = 13,903.60/x
  3. Step 3: Cross multiply
    49,439.12x = 74,158.68 × 13,903.60
  4. Step 4: Simplify right side
    49,439.12x = 1,031,072,623.25
  5. Step 5: Solve for x
    x = 1,031,072,623.25/49,439.12
  6. Step 6: Final answer
    x = 20,855.40

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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.