Home / 52,796.61-72,856.26-28,919.13

Finding the Fourth Proportional to 52,796.61, 72,856.26 and 28,919.13

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Solution

The fourth proportional to 52,796.61, 72,856.26 and 28,919.13 is: 39,906.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,796.61 : 72,856.26 = 28,919.13 : x
  2. Step 2: Convert to fraction form
    52,796.61/72,856.26 = 28,919.13/x
  3. Step 3: Cross multiply
    52,796.61x = 72,856.26 × 28,919.13
  4. Step 4: Simplify right side
    52,796.61x = 2,106,939,381.04
  5. Step 5: Solve for x
    x = 2,106,939,381.04/52,796.61
  6. Step 6: Final answer
    x = 39,906.72

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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.