Home / 87,174.96-130,749.48-31,758

Finding the Fourth Proportional to 87,174.96, 130,749.48 and 31,758

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Solution

The fourth proportional to 87,174.96, 130,749.48 and 31,758 is: 47,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,174.96 : 130,749.48 = 31,758 : x
  2. Step 2: Convert to fraction form
    87,174.96/130,749.48 = 31,758/x
  3. Step 3: Cross multiply
    87,174.96x = 130,749.48 × 31,758
  4. Step 4: Simplify right side
    87,174.96x = 4,152,341,985.84
  5. Step 5: Solve for x
    x = 4,152,341,985.84/87,174.96
  6. Step 6: Final answer
    x = 47,632.28

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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.