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Finding the Fourth Proportional to 84,672.46, 127,025.43 and 28,510.30

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Solution

The fourth proportional to 84,672.46, 127,025.43 and 28,510.30 is: 42,771.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,672.46 : 127,025.43 = 28,510.30 : x
  2. Step 2: Convert to fraction form
    84,672.46/127,025.43 = 28,510.30/x
  3. Step 3: Cross multiply
    84,672.46x = 127,025.43 × 28,510.30
  4. Step 4: Simplify right side
    84,672.46x = 3,621,533,116.93
  5. Step 5: Solve for x
    x = 3,621,533,116.93/84,672.46
  6. Step 6: Final answer
    x = 42,771.09

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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.