Home / 55,814.88-77,024.56-30,664.40

Finding the Fourth Proportional to 55,814.88, 77,024.56 and 30,664.40

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Solution

The fourth proportional to 55,814.88, 77,024.56 and 30,664.40 is: 42,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,814.88 : 77,024.56 = 30,664.40 : x
  2. Step 2: Convert to fraction form
    55,814.88/77,024.56 = 30,664.40/x
  3. Step 3: Cross multiply
    55,814.88x = 77,024.56 × 30,664.40
  4. Step 4: Simplify right side
    55,814.88x = 2,361,911,917.66
  5. Step 5: Solve for x
    x = 2,361,911,917.66/55,814.88
  6. Step 6: Final answer
    x = 42,316.89

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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.