Home / 84,700.27-127,029.75-28,525.76

Finding the Fourth Proportional to 84,700.27, 127,029.75 and 28,525.76

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Solution

The fourth proportional to 84,700.27, 127,029.75 and 28,525.76 is: 42,781.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,700.27 : 127,029.75 = 28,525.76 : x
  2. Step 2: Convert to fraction form
    84,700.27/127,029.75 = 28,525.76/x
  3. Step 3: Cross multiply
    84,700.27x = 127,029.75 × 28,525.76
  4. Step 4: Simplify right side
    84,700.27x = 3,623,620,161.36
  5. Step 5: Solve for x
    x = 3,623,620,161.36/84,700.27
  6. Step 6: Final answer
    x = 42,781.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.