Home / 76,940.08-115,424.16-35,386

Finding the Fourth Proportional to 76,940.08, 115,424.16 and 35,386

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Solution

The fourth proportional to 76,940.08, 115,424.16 and 35,386 is: 53,085.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,940.08 : 115,424.16 = 35,386 : x
  2. Step 2: Convert to fraction form
    76,940.08/115,424.16 = 35,386/x
  3. Step 3: Cross multiply
    76,940.08x = 115,424.16 × 35,386
  4. Step 4: Simplify right side
    76,940.08x = 4,084,399,325.76
  5. Step 5: Solve for x
    x = 4,084,399,325.76/76,940.08
  6. Step 6: Final answer
    x = 53,085.46

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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.