Home / 98,814.23-136,358.48-57,972.68

Finding the Fourth Proportional to 98,814.23, 136,358.48 and 57,972.68

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Solution

The fourth proportional to 98,814.23, 136,358.48 and 57,972.68 is: 79,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,814.23 : 136,358.48 = 57,972.68 : x
  2. Step 2: Convert to fraction form
    98,814.23/136,358.48 = 57,972.68/x
  3. Step 3: Cross multiply
    98,814.23x = 136,358.48 × 57,972.68
  4. Step 4: Simplify right side
    98,814.23x = 7,905,066,577.36
  5. Step 5: Solve for x
    x = 7,905,066,577.36/98,814.23
  6. Step 6: Final answer
    x = 79,999.27

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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.