Home / 50,802.82-70,142.12-31,711.66

Finding the Fourth Proportional to 50,802.82, 70,142.12 and 31,711.66

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Solution

The fourth proportional to 50,802.82, 70,142.12 and 31,711.66 is: 43,783.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,802.82 : 70,142.12 = 31,711.66 : x
  2. Step 2: Convert to fraction form
    50,802.82/70,142.12 = 31,711.66/x
  3. Step 3: Cross multiply
    50,802.82x = 70,142.12 × 31,711.66
  4. Step 4: Simplify right side
    50,802.82x = 2,224,322,925.40
  5. Step 5: Solve for x
    x = 2,224,322,925.40/50,802.82
  6. Step 6: Final answer
    x = 43,783.46

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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.