Home / 35,079.80-52,640.47-12,908.75

Finding the Fourth Proportional to 35,079.80, 52,640.47 and 12,908.75

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Solution

The fourth proportional to 35,079.80, 52,640.47 and 12,908.75 is: 19,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,079.80 : 52,640.47 = 12,908.75 : x
  2. Step 2: Convert to fraction form
    35,079.80/52,640.47 = 12,908.75/x
  3. Step 3: Cross multiply
    35,079.80x = 52,640.47 × 12,908.75
  4. Step 4: Simplify right side
    35,079.80x = 679,522,643.54
  5. Step 5: Solve for x
    x = 679,522,643.54/35,079.80
  6. Step 6: Final answer
    x = 19,370.77

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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.