Home / 55,783.04-76,982.40-31,909.76

Finding the Fourth Proportional to 55,783.04, 76,982.40 and 31,909.76

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Solution

The fourth proportional to 55,783.04, 76,982.40 and 31,909.76 is: 44,036.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,783.04 : 76,982.40 = 31,909.76 : x
  2. Step 2: Convert to fraction form
    55,783.04/76,982.40 = 31,909.76/x
  3. Step 3: Cross multiply
    55,783.04x = 76,982.40 × 31,909.76
  4. Step 4: Simplify right side
    55,783.04x = 2,456,489,908.22
  5. Step 5: Solve for x
    x = 2,456,489,908.22/55,783.04
  6. Step 6: Final answer
    x = 44,036.50

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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.