Home / 70,787.61-97,690.94-40,577.96

Finding the Fourth Proportional to 70,787.61, 97,690.94 and 40,577.96

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Solution

The fourth proportional to 70,787.61, 97,690.94 and 40,577.96 is: 55,999.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,787.61 : 97,690.94 = 40,577.96 : x
  2. Step 2: Convert to fraction form
    70,787.61/97,690.94 = 40,577.96/x
  3. Step 3: Cross multiply
    70,787.61x = 97,690.94 × 40,577.96
  4. Step 4: Simplify right side
    70,787.61x = 3,964,098,364.34
  5. Step 5: Solve for x
    x = 3,964,098,364.34/70,787.61
  6. Step 6: Final answer
    x = 55,999.89

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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.