Home / 57,430.11-86,138.33-15,313.35

Finding the Fourth Proportional to 57,430.11, 86,138.33 and 15,313.35

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Solution

The fourth proportional to 57,430.11, 86,138.33 and 15,313.35 is: 22,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,430.11 : 86,138.33 = 15,313.35 : x
  2. Step 2: Convert to fraction form
    57,430.11/86,138.33 = 15,313.35/x
  3. Step 3: Cross multiply
    57,430.11x = 86,138.33 × 15,313.35
  4. Step 4: Simplify right side
    57,430.11x = 1,319,066,319.14
  5. Step 5: Solve for x
    x = 1,319,066,319.14/57,430.11
  6. Step 6: Final answer
    x = 22,968.20

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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.