Home / 77,810.40-116,723.70-21,650.67

Finding the Fourth Proportional to 77,810.40, 116,723.70 and 21,650.67

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Solution

The fourth proportional to 77,810.40, 116,723.70 and 21,650.67 is: 32,478.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,810.40 : 116,723.70 = 21,650.67 : x
  2. Step 2: Convert to fraction form
    77,810.40/116,723.70 = 21,650.67/x
  3. Step 3: Cross multiply
    77,810.40x = 116,723.70 × 21,650.67
  4. Step 4: Simplify right side
    77,810.40x = 2,527,146,309.88
  5. Step 5: Solve for x
    x = 2,527,146,309.88/77,810.40
  6. Step 6: Final answer
    x = 32,478.26

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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.