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Finding the Fourth Proportional to 101,770.43, 140,438.23 and 56,444.40

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Solution

The fourth proportional to 101,770.43, 140,438.23 and 56,444.40 is: 77,890.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,770.43 : 140,438.23 = 56,444.40 : x
  2. Step 2: Convert to fraction form
    101,770.43/140,438.23 = 56,444.40/x
  3. Step 3: Cross multiply
    101,770.43x = 140,438.23 × 56,444.40
  4. Step 4: Simplify right side
    101,770.43x = 7,926,951,629.41
  5. Step 5: Solve for x
    x = 7,926,951,629.41/101,770.43
  6. Step 6: Final answer
    x = 77,890.52

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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.