Home / 76,386.50-114,586.41-31,410.59

Finding the Fourth Proportional to 76,386.50, 114,586.41 and 31,410.59

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Solution

The fourth proportional to 76,386.50, 114,586.41 and 31,410.59 is: 47,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,386.50 : 114,586.41 = 31,410.59 : x
  2. Step 2: Convert to fraction form
    76,386.50/114,586.41 = 31,410.59/x
  3. Step 3: Cross multiply
    76,386.50x = 114,586.41 × 31,410.59
  4. Step 4: Simplify right side
    76,386.50x = 3,599,226,744.08
  5. Step 5: Solve for x
    x = 3,599,226,744.08/76,386.50
  6. Step 6: Final answer
    x = 47,118.62

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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.