Home / 81,433.35-112,376.97-45,623.66

Finding the Fourth Proportional to 81,433.35, 112,376.97 and 45,623.66

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Solution

The fourth proportional to 81,433.35, 112,376.97 and 45,623.66 is: 62,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,433.35 : 112,376.97 = 45,623.66 : x
  2. Step 2: Convert to fraction form
    81,433.35/112,376.97 = 45,623.66/x
  3. Step 3: Cross multiply
    81,433.35x = 112,376.97 × 45,623.66
  4. Step 4: Simplify right side
    81,433.35x = 5,127,048,109.23
  5. Step 5: Solve for x
    x = 5,127,048,109.23/81,433.35
  6. Step 6: Final answer
    x = 62,960.05

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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.