Home / 55,100.79-76,056.44-31,243.32

Finding the Fourth Proportional to 55,100.79, 76,056.44 and 31,243.32

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Solution

The fourth proportional to 55,100.79, 76,056.44 and 31,243.32 is: 43,125.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,100.79 : 76,056.44 = 31,243.32 : x
  2. Step 2: Convert to fraction form
    55,100.79/76,056.44 = 31,243.32/x
  3. Step 3: Cross multiply
    55,100.79x = 76,056.44 × 31,243.32
  4. Step 4: Simplify right side
    55,100.79x = 2,376,255,536.76
  5. Step 5: Solve for x
    x = 2,376,255,536.76/55,100.79
  6. Step 6: Final answer
    x = 43,125.62

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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.