Home / 48,285.72-72,429.12-31,749.84

Finding the Fourth Proportional to 48,285.72, 72,429.12 and 31,749.84

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Solution

The fourth proportional to 48,285.72, 72,429.12 and 31,749.84 is: 47,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,285.72 : 72,429.12 = 31,749.84 : x
  2. Step 2: Convert to fraction form
    48,285.72/72,429.12 = 31,749.84/x
  3. Step 3: Cross multiply
    48,285.72x = 72,429.12 × 31,749.84
  4. Step 4: Simplify right side
    48,285.72x = 2,299,612,971.34
  5. Step 5: Solve for x
    x = 2,299,612,971.34/48,285.72
  6. Step 6: Final answer
    x = 47,625.12

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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.