Home / 77,832.81-116,680.10-28,550.25

Finding the Fourth Proportional to 77,832.81, 116,680.10 and 28,550.25

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Solution

The fourth proportional to 77,832.81, 116,680.10 and 28,550.25 is: 42,800.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,832.81 : 116,680.10 = 28,550.25 : x
  2. Step 2: Convert to fraction form
    77,832.81/116,680.10 = 28,550.25/x
  3. Step 3: Cross multiply
    77,832.81x = 116,680.10 × 28,550.25
  4. Step 4: Simplify right side
    77,832.81x = 3,331,245,882.27
  5. Step 5: Solve for x
    x = 3,331,245,882.27/77,832.81
  6. Step 6: Final answer
    x = 42,800.02

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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.