Home / 375,409.19-563,109-91,102.07

Finding the Fourth Proportional to 375,409.19, 563,109 and 91,102.07

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Solution

The fourth proportional to 375,409.19, 563,109 and 91,102.07 is: 136,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,409.19 : 563,109 = 91,102.07 : x
  2. Step 2: Convert to fraction form
    375,409.19/563,109 = 91,102.07/x
  3. Step 3: Cross multiply
    375,409.19x = 563,109 × 91,102.07
  4. Step 4: Simplify right side
    375,409.19x = 51,300,395,535.63
  5. Step 5: Solve for x
    x = 51,300,395,535.63/375,409.19
  6. Step 6: Final answer
    x = 136,651.94

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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.