Home / 83,739.12-125,595.60-54,365.28

Finding the Fourth Proportional to 83,739.12, 125,595.60 and 54,365.28

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Solution

The fourth proportional to 83,739.12, 125,595.60 and 54,365.28 is: 81,539.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,739.12 : 125,595.60 = 54,365.28 : x
  2. Step 2: Convert to fraction form
    83,739.12/125,595.60 = 54,365.28/x
  3. Step 3: Cross multiply
    83,739.12x = 125,595.60 × 54,365.28
  4. Step 4: Simplify right side
    83,739.12x = 6,828,039,960.77
  5. Step 5: Solve for x
    x = 6,828,039,960.77/83,739.12
  6. Step 6: Final answer
    x = 81,539.43

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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.