Home / 43,189.15-64,802.54-15,129.37

Finding the Fourth Proportional to 43,189.15, 64,802.54 and 15,129.37

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Solution

The fourth proportional to 43,189.15, 64,802.54 and 15,129.37 is: 22,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,189.15 : 64,802.54 = 15,129.37 : x
  2. Step 2: Convert to fraction form
    43,189.15/64,802.54 = 15,129.37/x
  3. Step 3: Cross multiply
    43,189.15x = 64,802.54 × 15,129.37
  4. Step 4: Simplify right side
    43,189.15x = 980,421,604.60
  5. Step 5: Solve for x
    x = 980,421,604.60/43,189.15
  6. Step 6: Final answer
    x = 22,700.65

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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.