Home / 57,430.62-86,139.08-15,313.86

Finding the Fourth Proportional to 57,430.62, 86,139.08 and 15,313.86

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Solution

The fourth proportional to 57,430.62, 86,139.08 and 15,313.86 is: 22,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,430.62 : 86,139.08 = 15,313.86 : x
  2. Step 2: Convert to fraction form
    57,430.62/86,139.08 = 15,313.86/x
  3. Step 3: Cross multiply
    57,430.62x = 86,139.08 × 15,313.86
  4. Step 4: Simplify right side
    57,430.62x = 1,319,121,811.65
  5. Step 5: Solve for x
    x = 1,319,121,811.65/57,430.62
  6. Step 6: Final answer
    x = 22,968.96

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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.