Home / 52,840.32-72,919.20-28,968.48

Finding the Fourth Proportional to 52,840.32, 72,919.20 and 28,968.48

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Solution

The fourth proportional to 52,840.32, 72,919.20 and 28,968.48 is: 39,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,840.32 : 72,919.20 = 28,968.48 : x
  2. Step 2: Convert to fraction form
    52,840.32/72,919.20 = 28,968.48/x
  3. Step 3: Cross multiply
    52,840.32x = 72,919.20 × 28,968.48
  4. Step 4: Simplify right side
    52,840.32x = 2,112,358,386.82
  5. Step 5: Solve for x
    x = 2,112,358,386.82/52,840.32
  6. Step 6: Final answer
    x = 39,976.26

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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.