Home / 81,433.82-112,385.91-45,623.60

Finding the Fourth Proportional to 81,433.82, 112,385.91 and 45,623.60

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Solution

The fourth proportional to 81,433.82, 112,385.91 and 45,623.60 is: 62,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,433.82 : 112,385.91 = 45,623.60 : x
  2. Step 2: Convert to fraction form
    81,433.82/112,385.91 = 45,623.60/x
  3. Step 3: Cross multiply
    81,433.82x = 112,385.91 × 45,623.60
  4. Step 4: Simplify right side
    81,433.82x = 5,127,449,803.48
  5. Step 5: Solve for x
    x = 5,127,449,803.48/81,433.82
  6. Step 6: Final answer
    x = 62,964.62

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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.