Home / 52,730.85-72,768.45-28,857.51

Finding the Fourth Proportional to 52,730.85, 72,768.45 and 28,857.51

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Solution

The fourth proportional to 52,730.85, 72,768.45 and 28,857.51 is: 39,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,730.85 : 72,768.45 = 28,857.51 : x
  2. Step 2: Convert to fraction form
    52,730.85/72,768.45 = 28,857.51/x
  3. Step 3: Cross multiply
    52,730.85x = 72,768.45 × 28,857.51
  4. Step 4: Simplify right side
    52,730.85x = 2,099,916,273.56
  5. Step 5: Solve for x
    x = 2,099,916,273.56/52,730.85
  6. Step 6: Final answer
    x = 39,823.30

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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.