Home / 55,917.09-77,165.76-30,423.45

Finding the Fourth Proportional to 55,917.09, 77,165.76 and 30,423.45

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Solution

The fourth proportional to 55,917.09, 77,165.76 and 30,423.45 is: 41,984.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,917.09 : 77,165.76 = 30,423.45 : x
  2. Step 2: Convert to fraction form
    55,917.09/77,165.76 = 30,423.45/x
  3. Step 3: Cross multiply
    55,917.09x = 77,165.76 × 30,423.45
  4. Step 4: Simplify right side
    55,917.09x = 2,347,648,641.07
  5. Step 5: Solve for x
    x = 2,347,648,641.07/55,917.09
  6. Step 6: Final answer
    x = 41,984.46

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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.