Home / 98,570.98-136,027.82-56,129.51

Finding the Fourth Proportional to 98,570.98, 136,027.82 and 56,129.51

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Solution

The fourth proportional to 98,570.98, 136,027.82 and 56,129.51 is: 77,458.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,570.98 : 136,027.82 = 56,129.51 : x
  2. Step 2: Convert to fraction form
    98,570.98/136,027.82 = 56,129.51/x
  3. Step 3: Cross multiply
    98,570.98x = 136,027.82 × 56,129.51
  4. Step 4: Simplify right side
    98,570.98x = 7,635,174,882.97
  5. Step 5: Solve for x
    x = 7,635,174,882.97/98,570.98
  6. Step 6: Final answer
    x = 77,458.65

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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.