Home / 55,276.17-76,283.17-31,406.88

Finding the Fourth Proportional to 55,276.17, 76,283.17 and 31,406.88

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Solution

The fourth proportional to 55,276.17, 76,283.17 and 31,406.88 is: 43,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.17 : 76,283.17 = 31,406.88 : x
  2. Step 2: Convert to fraction form
    55,276.17/76,283.17 = 31,406.88/x
  3. Step 3: Cross multiply
    55,276.17x = 76,283.17 × 31,406.88
  4. Step 4: Simplify right side
    55,276.17x = 2,395,816,573.75
  5. Step 5: Solve for x
    x = 2,395,816,573.75/55,276.17
  6. Step 6: Final answer
    x = 43,342.67

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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.