Home / 77,433.12-106,895.32-51,930.23

Finding the Fourth Proportional to 77,433.12, 106,895.32 and 51,930.23

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Solution

The fourth proportional to 77,433.12, 106,895.32 and 51,930.23 is: 71,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,433.12 : 106,895.32 = 51,930.23 : x
  2. Step 2: Convert to fraction form
    77,433.12/106,895.32 = 51,930.23/x
  3. Step 3: Cross multiply
    77,433.12x = 106,895.32 × 51,930.23
  4. Step 4: Simplify right side
    77,433.12x = 5,551,097,889.22
  5. Step 5: Solve for x
    x = 5,551,097,889.22/77,433.12
  6. Step 6: Final answer
    x = 71,688.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.