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Finding the Fourth Proportional to 101,772.34, 140,444.90 and 56,450.42

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Solution

The fourth proportional to 101,772.34, 140,444.90 and 56,450.42 is: 77,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,772.34 : 140,444.90 = 56,450.42 : x
  2. Step 2: Convert to fraction form
    101,772.34/140,444.90 = 56,450.42/x
  3. Step 3: Cross multiply
    101,772.34x = 140,444.90 × 56,450.42
  4. Step 4: Simplify right side
    101,772.34x = 7,928,173,591.86
  5. Step 5: Solve for x
    x = 7,928,173,591.86/101,772.34
  6. Step 6: Final answer
    x = 77,901.06

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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.