Home / 77,878.20-116,817.30-48,329.40

Finding the Fourth Proportional to 77,878.20, 116,817.30 and 48,329.40

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Solution

The fourth proportional to 77,878.20, 116,817.30 and 48,329.40 is: 72,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,878.20 : 116,817.30 = 48,329.40 : x
  2. Step 2: Convert to fraction form
    77,878.20/116,817.30 = 48,329.40/x
  3. Step 3: Cross multiply
    77,878.20x = 116,817.30 × 48,329.40
  4. Step 4: Simplify right side
    77,878.20x = 5,645,710,018.62
  5. Step 5: Solve for x
    x = 5,645,710,018.62/77,878.20
  6. Step 6: Final answer
    x = 72,494.10

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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.