Home / 77,363.63-116,032.99-21,190.60

Finding the Fourth Proportional to 77,363.63, 116,032.99 and 21,190.60

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Solution

The fourth proportional to 77,363.63, 116,032.99 and 21,190.60 is: 31,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,363.63 : 116,032.99 = 21,190.60 : x
  2. Step 2: Convert to fraction form
    77,363.63/116,032.99 = 21,190.60/x
  3. Step 3: Cross multiply
    77,363.63x = 116,032.99 × 21,190.60
  4. Step 4: Simplify right side
    77,363.63x = 2,458,808,281.86
  5. Step 5: Solve for x
    x = 2,458,808,281.86/77,363.63
  6. Step 6: Final answer
    x = 31,782.48

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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.