Home / 105,780.90-145,975.08-58,033.83

Finding the Fourth Proportional to 105,780.90, 145,975.08 and 58,033.83

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Solution

The fourth proportional to 105,780.90, 145,975.08 and 58,033.83 is: 80,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,780.90 : 145,975.08 = 58,033.83 : x
  2. Step 2: Convert to fraction form
    105,780.90/145,975.08 = 58,033.83/x
  3. Step 3: Cross multiply
    105,780.90x = 145,975.08 × 58,033.83
  4. Step 4: Simplify right side
    105,780.90x = 8,471,492,976.96
  5. Step 5: Solve for x
    x = 8,471,492,976.96/105,780.90
  6. Step 6: Final answer
    x = 80,085.28

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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.