Home / 55,780.20-83,594.28-30,783

Finding the Fourth Proportional to 55,780.20, 83,594.28 and 30,783

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Solution

The fourth proportional to 55,780.20, 83,594.28 and 30,783 is: 46,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.20 : 83,594.28 = 30,783 : x
  2. Step 2: Convert to fraction form
    55,780.20/83,594.28 = 30,783/x
  3. Step 3: Cross multiply
    55,780.20x = 83,594.28 × 30,783
  4. Step 4: Simplify right side
    55,780.20x = 2,573,282,721.24
  5. Step 5: Solve for x
    x = 2,573,282,721.24/55,780.20
  6. Step 6: Final answer
    x = 46,132.55

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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.