Home / 98,381.72-135,762.75-58,108.52

Finding the Fourth Proportional to 98,381.72, 135,762.75 and 58,108.52

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Solution

The fourth proportional to 98,381.72, 135,762.75 and 58,108.52 is: 80,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,381.72 : 135,762.75 = 58,108.52 : x
  2. Step 2: Convert to fraction form
    98,381.72/135,762.75 = 58,108.52/x
  3. Step 3: Cross multiply
    98,381.72x = 135,762.75 × 58,108.52
  4. Step 4: Simplify right side
    98,381.72x = 7,888,972,473.63
  5. Step 5: Solve for x
    x = 7,888,972,473.63/98,381.72
  6. Step 6: Final answer
    x = 80,187.38

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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.