Home / 83,480.32-115,166.64-55,225.36

Finding the Fourth Proportional to 83,480.32, 115,166.64 and 55,225.36

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Solution

The fourth proportional to 83,480.32, 115,166.64 and 55,225.36 is: 76,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,480.32 : 115,166.64 = 55,225.36 : x
  2. Step 2: Convert to fraction form
    83,480.32/115,166.64 = 55,225.36/x
  3. Step 3: Cross multiply
    83,480.32x = 115,166.64 × 55,225.36
  4. Step 4: Simplify right side
    83,480.32x = 6,360,119,153.99
  5. Step 5: Solve for x
    x = 6,360,119,153.99/83,480.32
  6. Step 6: Final answer
    x = 76,187.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.