Home / 77,910.10-116,865.15-48,231.70

Finding the Fourth Proportional to 77,910.10, 116,865.15 and 48,231.70

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Solution

The fourth proportional to 77,910.10, 116,865.15 and 48,231.70 is: 72,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,910.10 : 116,865.15 = 48,231.70 : x
  2. Step 2: Convert to fraction form
    77,910.10/116,865.15 = 48,231.70/x
  3. Step 3: Cross multiply
    77,910.10x = 116,865.15 × 48,231.70
  4. Step 4: Simplify right side
    77,910.10x = 5,636,604,855.26
  5. Step 5: Solve for x
    x = 5,636,604,855.26/77,910.10
  6. Step 6: Final answer
    x = 72,347.55

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1.5x scale

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.