Home / 84,671.04-127,008.36-28,512.84

Finding the Fourth Proportional to 84,671.04, 127,008.36 and 28,512.84

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Solution

The fourth proportional to 84,671.04, 127,008.36 and 28,512.84 is: 42,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,671.04 : 127,008.36 = 28,512.84 : x
  2. Step 2: Convert to fraction form
    84,671.04/127,008.36 = 28,512.84/x
  3. Step 3: Cross multiply
    84,671.04x = 127,008.36 × 28,512.84
  4. Step 4: Simplify right side
    84,671.04x = 3,621,369,047.34
  5. Step 5: Solve for x
    x = 3,621,369,047.34/84,671.04
  6. Step 6: Final answer
    x = 42,769.87

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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.