Home / 77,733.48-116,607.51-30,990

Finding the Fourth Proportional to 77,733.48, 116,607.51 and 30,990

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Solution

The fourth proportional to 77,733.48, 116,607.51 and 30,990 is: 46,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,733.48 : 116,607.51 = 30,990 : x
  2. Step 2: Convert to fraction form
    77,733.48/116,607.51 = 30,990/x
  3. Step 3: Cross multiply
    77,733.48x = 116,607.51 × 30,990
  4. Step 4: Simplify right side
    77,733.48x = 3,613,666,734.90
  5. Step 5: Solve for x
    x = 3,613,666,734.90/77,733.48
  6. Step 6: Final answer
    x = 46,487.91

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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.