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Finding the Fourth Proportional to 51,235.80, 70,710.84 and 30,032.88

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Solution

The fourth proportional to 51,235.80, 70,710.84 and 30,032.88 is: 41,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,235.80 : 70,710.84 = 30,032.88 : x
  2. Step 2: Convert to fraction form
    51,235.80/70,710.84 = 30,032.88/x
  3. Step 3: Cross multiply
    51,235.80x = 70,710.84 × 30,032.88
  4. Step 4: Simplify right side
    51,235.80x = 2,123,650,172.42
  5. Step 5: Solve for x
    x = 2,123,650,172.42/51,235.80
  6. Step 6: Final answer
    x = 41,448.56

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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.