Home / 77,778.26-116,572.60-40,317.69

Finding the Fourth Proportional to 77,778.26, 116,572.60 and 40,317.69

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Solution

The fourth proportional to 77,778.26, 116,572.60 and 40,317.69 is: 60,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,778.26 : 116,572.60 = 40,317.69 : x
  2. Step 2: Convert to fraction form
    77,778.26/116,572.60 = 40,317.69/x
  3. Step 3: Cross multiply
    77,778.26x = 116,572.60 × 40,317.69
  4. Step 4: Simplify right side
    77,778.26x = 4,699,937,949.29
  5. Step 5: Solve for x
    x = 4,699,937,949.29/77,778.26
  6. Step 6: Final answer
    x = 60,427.40

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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.