Home / 52,769.40-72,820.78-28,895.64

Finding the Fourth Proportional to 52,769.40, 72,820.78 and 28,895.64

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Solution

The fourth proportional to 52,769.40, 72,820.78 and 28,895.64 is: 39,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,769.40 : 72,820.78 = 28,895.64 : x
  2. Step 2: Convert to fraction form
    52,769.40/72,820.78 = 28,895.64/x
  3. Step 3: Cross multiply
    52,769.40x = 72,820.78 × 28,895.64
  4. Step 4: Simplify right side
    52,769.40x = 2,104,203,043.40
  5. Step 5: Solve for x
    x = 2,104,203,043.40/52,769.40
  6. Step 6: Final answer
    x = 39,875.44

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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.