Home / 78,908.14-118,362.67-26,317.47

Finding the Fourth Proportional to 78,908.14, 118,362.67 and 26,317.47

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Solution

The fourth proportional to 78,908.14, 118,362.67 and 26,317.47 is: 39,476.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,908.14 : 118,362.67 = 26,317.47 : x
  2. Step 2: Convert to fraction form
    78,908.14/118,362.67 = 26,317.47/x
  3. Step 3: Cross multiply
    78,908.14x = 118,362.67 × 26,317.47
  4. Step 4: Simplify right side
    78,908.14x = 3,115,005,951.05
  5. Step 5: Solve for x
    x = 3,115,005,951.05/78,908.14
  6. Step 6: Final answer
    x = 39,476.36

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1.5x scale

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.