Home / 48,371.79-72,543.90-18,783.30

Finding the Fourth Proportional to 48,371.79, 72,543.90 and 18,783.30

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Solution

The fourth proportional to 48,371.79, 72,543.90 and 18,783.30 is: 28,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,371.79 : 72,543.90 = 18,783.30 : x
  2. Step 2: Convert to fraction form
    48,371.79/72,543.90 = 18,783.30/x
  3. Step 3: Cross multiply
    48,371.79x = 72,543.90 × 18,783.30
  4. Step 4: Simplify right side
    48,371.79x = 1,362,613,836.87
  5. Step 5: Solve for x
    x = 1,362,613,836.87/48,371.79
  6. Step 6: Final answer
    x = 28,169.60

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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.