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Finding the Fourth Proportional to 49,237.88, 67,948.88 and 28,019.12

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Solution

The fourth proportional to 49,237.88, 67,948.88 and 28,019.12 is: 38,666.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,237.88 : 67,948.88 = 28,019.12 : x
  2. Step 2: Convert to fraction form
    49,237.88/67,948.88 = 28,019.12/x
  3. Step 3: Cross multiply
    49,237.88x = 67,948.88 × 28,019.12
  4. Step 4: Simplify right side
    49,237.88x = 1,903,867,342.75
  5. Step 5: Solve for x
    x = 1,903,867,342.75/49,237.88
  6. Step 6: Final answer
    x = 38,666.72

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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.