Home / 48,120.75-72,040.35-28,068.93

Finding the Fourth Proportional to 48,120.75, 72,040.35 and 28,068.93

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Solution

The fourth proportional to 48,120.75, 72,040.35 and 28,068.93 is: 42,021.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,120.75 : 72,040.35 = 28,068.93 : x
  2. Step 2: Convert to fraction form
    48,120.75/72,040.35 = 28,068.93/x
  3. Step 3: Cross multiply
    48,120.75x = 72,040.35 × 28,068.93
  4. Step 4: Simplify right side
    48,120.75x = 2,022,095,541.33
  5. Step 5: Solve for x
    x = 2,022,095,541.33/48,120.75
  6. Step 6: Final answer
    x = 42,021.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.