Home / 100,024.20-138,050.37-57,607.29

Finding the Fourth Proportional to 100,024.20, 138,050.37 and 57,607.29

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Solution

The fourth proportional to 100,024.20, 138,050.37 and 57,607.29 is: 79,507.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,024.20 : 138,050.37 = 57,607.29 : x
  2. Step 2: Convert to fraction form
    100,024.20/138,050.37 = 57,607.29/x
  3. Step 3: Cross multiply
    100,024.20x = 138,050.37 × 57,607.29
  4. Step 4: Simplify right side
    100,024.20x = 7,952,707,699.20
  5. Step 5: Solve for x
    x = 7,952,707,699.20/100,024.20
  6. Step 6: Final answer
    x = 79,507.84

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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.