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Finding the Fourth Proportional to 76,392, 114,624.40 and 36,927.12

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Solution

The fourth proportional to 76,392, 114,624.40 and 36,927.12 is: 55,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,392 : 114,624.40 = 36,927.12 : x
  2. Step 2: Convert to fraction form
    76,392/114,624.40 = 36,927.12/x
  3. Step 3: Cross multiply
    76,392x = 114,624.40 × 36,927.12
  4. Step 4: Simplify right side
    76,392x = 4,232,748,973.73
  5. Step 5: Solve for x
    x = 4,232,748,973.73/76,392
  6. Step 6: Final answer
    x = 55,408.28

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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.