Home / 81,835.54-112,916.10-47,837.46

Finding the Fourth Proportional to 81,835.54, 112,916.10 and 47,837.46

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Solution

The fourth proportional to 81,835.54, 112,916.10 and 47,837.46 is: 66,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835.54 : 112,916.10 = 47,837.46 : x
  2. Step 2: Convert to fraction form
    81,835.54/112,916.10 = 47,837.46/x
  3. Step 3: Cross multiply
    81,835.54x = 112,916.10 × 47,837.46
  4. Step 4: Simplify right side
    81,835.54x = 5,401,619,417.11
  5. Step 5: Solve for x
    x = 5,401,619,417.11/81,835.54
  6. Step 6: Final answer
    x = 66,005.79

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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.