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Finding the Fourth Proportional to 77,157.60, 115,735.56 and 58,551.90

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Solution

The fourth proportional to 77,157.60, 115,735.56 and 58,551.90 is: 87,827.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,157.60 : 115,735.56 = 58,551.90 : x
  2. Step 2: Convert to fraction form
    77,157.60/115,735.56 = 58,551.90/x
  3. Step 3: Cross multiply
    77,157.60x = 115,735.56 × 58,551.90
  4. Step 4: Simplify right side
    77,157.60x = 6,776,536,935.56
  5. Step 5: Solve for x
    x = 6,776,536,935.56/77,157.60
  6. Step 6: Final answer
    x = 87,827.21

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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.