Home / 78,899.14-118,349.76-26,308.65

Finding the Fourth Proportional to 78,899.14, 118,349.76 and 26,308.65

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Solution

The fourth proportional to 78,899.14, 118,349.76 and 26,308.65 is: 39,463.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,899.14 : 118,349.76 = 26,308.65 : x
  2. Step 2: Convert to fraction form
    78,899.14/118,349.76 = 26,308.65/x
  3. Step 3: Cross multiply
    78,899.14x = 118,349.76 × 26,308.65
  4. Step 4: Simplify right side
    78,899.14x = 3,113,622,413.42
  5. Step 5: Solve for x
    x = 3,113,622,413.42/78,899.14
  6. Step 6: Final answer
    x = 39,463.33

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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.