Home / 76,546.42-105,634.53-42,558.11

Finding the Fourth Proportional to 76,546.42, 105,634.53 and 42,558.11

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Solution

The fourth proportional to 76,546.42, 105,634.53 and 42,558.11 is: 58,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,546.42 : 105,634.53 = 42,558.11 : x
  2. Step 2: Convert to fraction form
    76,546.42/105,634.53 = 42,558.11/x
  3. Step 3: Cross multiply
    76,546.42x = 105,634.53 × 42,558.11
  4. Step 4: Simplify right side
    76,546.42x = 4,495,605,815.50
  5. Step 5: Solve for x
    x = 4,495,605,815.50/76,546.42
  6. Step 6: Final answer
    x = 58,730.45

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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.