Home / 76,258.40-114,518.82-72,977.90

Finding the Fourth Proportional to 76,258.40, 114,518.82 and 72,977.90

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Solution

The fourth proportional to 76,258.40, 114,518.82 and 72,977.90 is: 109,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,258.40 : 114,518.82 = 72,977.90 : x
  2. Step 2: Convert to fraction form
    76,258.40/114,518.82 = 72,977.90/x
  3. Step 3: Cross multiply
    76,258.40x = 114,518.82 × 72,977.90
  4. Step 4: Simplify right side
    76,258.40x = 8,357,342,994.08
  5. Step 5: Solve for x
    x = 8,357,342,994.08/76,258.40
  6. Step 6: Final answer
    x = 109,592.43

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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.