Home / 81,835.65-112,916.26-47,837.56

Finding the Fourth Proportional to 81,835.65, 112,916.26 and 47,837.56

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Solution

The fourth proportional to 81,835.65, 112,916.26 and 47,837.56 is: 66,005.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835.65 : 112,916.26 = 47,837.56 : x
  2. Step 2: Convert to fraction form
    81,835.65/112,916.26 = 47,837.56/x
  3. Step 3: Cross multiply
    81,835.65x = 112,916.26 × 47,837.56
  4. Step 4: Simplify right side
    81,835.65x = 5,401,638,362.73
  5. Step 5: Solve for x
    x = 5,401,638,362.73/81,835.65
  6. Step 6: Final answer
    x = 66,005.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.