Home / 77,255.65-115,803.58-43,903.90

Finding the Fourth Proportional to 77,255.65, 115,803.58 and 43,903.90

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Solution

The fourth proportional to 77,255.65, 115,803.58 and 43,903.90 is: 65,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,255.65 : 115,803.58 = 43,903.90 : x
  2. Step 2: Convert to fraction form
    77,255.65/115,803.58 = 43,903.90/x
  3. Step 3: Cross multiply
    77,255.65x = 115,803.58 × 43,903.90
  4. Step 4: Simplify right side
    77,255.65x = 5,084,228,795.96
  5. Step 5: Solve for x
    x = 5,084,228,795.96/77,255.65
  6. Step 6: Final answer
    x = 65,810.45

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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.