Home / 77,749.89-107,287.86-43,761.08

Finding the Fourth Proportional to 77,749.89, 107,287.86 and 43,761.08

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Solution

The fourth proportional to 77,749.89, 107,287.86 and 43,761.08 is: 60,386.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,749.89 : 107,287.86 = 43,761.08 : x
  2. Step 2: Convert to fraction form
    77,749.89/107,287.86 = 43,761.08/x
  3. Step 3: Cross multiply
    77,749.89x = 107,287.86 × 43,761.08
  4. Step 4: Simplify right side
    77,749.89x = 4,695,032,088.05
  5. Step 5: Solve for x
    x = 4,695,032,088.05/77,749.89
  6. Step 6: Final answer
    x = 60,386.35

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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.