Home / 77,036.50-115,564.47-26,445.39

Finding the Fourth Proportional to 77,036.50, 115,564.47 and 26,445.39

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Solution

The fourth proportional to 77,036.50, 115,564.47 and 26,445.39 is: 39,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,036.50 : 115,564.47 = 26,445.39 : x
  2. Step 2: Convert to fraction form
    77,036.50/115,564.47 = 26,445.39/x
  3. Step 3: Cross multiply
    77,036.50x = 115,564.47 × 26,445.39
  4. Step 4: Simplify right side
    77,036.50x = 3,056,147,479.29
  5. Step 5: Solve for x
    x = 3,056,147,479.29/77,036.50
  6. Step 6: Final answer
    x = 39,671.42

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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.