Home / 78,767.98-118,112.55-26,159.02

Finding the Fourth Proportional to 78,767.98, 118,112.55 and 26,159.02

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Solution

The fourth proportional to 78,767.98, 118,112.55 and 26,159.02 is: 39,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,767.98 : 118,112.55 = 26,159.02 : x
  2. Step 2: Convert to fraction form
    78,767.98/118,112.55 = 26,159.02/x
  3. Step 3: Cross multiply
    78,767.98x = 118,112.55 × 26,159.02
  4. Step 4: Simplify right side
    78,767.98x = 3,089,708,557.70
  5. Step 5: Solve for x
    x = 3,089,708,557.70/78,767.98
  6. Step 6: Final answer
    x = 39,225.44

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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.