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Finding the Fourth Proportional to 84,672.96, 127,026.18 and 28,510.80

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Solution

The fourth proportional to 84,672.96, 127,026.18 and 28,510.80 is: 42,771.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,672.96 : 127,026.18 = 28,510.80 : x
  2. Step 2: Convert to fraction form
    84,672.96/127,026.18 = 28,510.80/x
  3. Step 3: Cross multiply
    84,672.96x = 127,026.18 × 28,510.80
  4. Step 4: Simplify right side
    84,672.96x = 3,621,618,012.74
  5. Step 5: Solve for x
    x = 3,621,618,012.74/84,672.96
  6. Step 6: Final answer
    x = 42,771.84

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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.