Home / 83,418.64-115,117.44-45,692.80

Finding the Fourth Proportional to 83,418.64, 115,117.44 and 45,692.80

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Solution

The fourth proportional to 83,418.64, 115,117.44 and 45,692.80 is: 63,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,418.64 : 115,117.44 = 45,692.80 : x
  2. Step 2: Convert to fraction form
    83,418.64/115,117.44 = 45,692.80/x
  3. Step 3: Cross multiply
    83,418.64x = 115,117.44 × 45,692.80
  4. Step 4: Simplify right side
    83,418.64x = 5,260,038,162.43
  5. Step 5: Solve for x
    x = 5,260,038,162.43/83,418.64
  6. Step 6: Final answer
    x = 63,055.91

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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.