Home / 77,211.03-115,817.76-30,463.50

Finding the Fourth Proportional to 77,211.03, 115,817.76 and 30,463.50

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Solution

The fourth proportional to 77,211.03, 115,817.76 and 30,463.50 is: 45,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,211.03 : 115,817.76 = 30,463.50 : x
  2. Step 2: Convert to fraction form
    77,211.03/115,817.76 = 30,463.50/x
  3. Step 3: Cross multiply
    77,211.03x = 115,817.76 × 30,463.50
  4. Step 4: Simplify right side
    77,211.03x = 3,528,214,331.76
  5. Step 5: Solve for x
    x = 3,528,214,331.76/77,211.03
  6. Step 6: Final answer
    x = 45,695.73

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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.