Home / 86,703.36-130,037.76-39,949.44

Finding the Fourth Proportional to 86,703.36, 130,037.76 and 39,949.44

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Solution

The fourth proportional to 86,703.36, 130,037.76 and 39,949.44 is: 59,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.36 : 130,037.76 = 39,949.44 : x
  2. Step 2: Convert to fraction form
    86,703.36/130,037.76 = 39,949.44/x
  3. Step 3: Cross multiply
    86,703.36x = 130,037.76 × 39,949.44
  4. Step 4: Simplify right side
    86,703.36x = 5,194,935,690.85
  5. Step 5: Solve for x
    x = 5,194,935,690.85/86,703.36
  6. Step 6: Final answer
    x = 59,916.20

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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.