Home / 83,784.98-125,637.98-30,439.34

Finding the Fourth Proportional to 83,784.98, 125,637.98 and 30,439.34

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Solution

The fourth proportional to 83,784.98, 125,637.98 and 30,439.34 is: 45,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,784.98 : 125,637.98 = 30,439.34 : x
  2. Step 2: Convert to fraction form
    83,784.98/125,637.98 = 30,439.34/x
  3. Step 3: Cross multiply
    83,784.98x = 125,637.98 × 30,439.34
  4. Step 4: Simplify right side
    83,784.98x = 3,824,336,409.75
  5. Step 5: Solve for x
    x = 3,824,336,409.75/83,784.98
  6. Step 6: Final answer
    x = 45,644.66

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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.