Home / 98,749.44-136,270.84-56,321.64

Finding the Fourth Proportional to 98,749.44, 136,270.84 and 56,321.64

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Solution

The fourth proportional to 98,749.44, 136,270.84 and 56,321.64 is: 77,721.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,749.44 : 136,270.84 = 56,321.64 : x
  2. Step 2: Convert to fraction form
    98,749.44/136,270.84 = 56,321.64/x
  3. Step 3: Cross multiply
    98,749.44x = 136,270.84 × 56,321.64
  4. Step 4: Simplify right side
    98,749.44x = 7,674,997,192.98
  5. Step 5: Solve for x
    x = 7,674,997,192.98/98,749.44
  6. Step 6: Final answer
    x = 77,721.93

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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.