Home / 77,973.05-107,602.73-42,162.97

Finding the Fourth Proportional to 77,973.05, 107,602.73 and 42,162.97

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Solution

The fourth proportional to 77,973.05, 107,602.73 and 42,162.97 is: 58,184.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,973.05 : 107,602.73 = 42,162.97 : x
  2. Step 2: Convert to fraction form
    77,973.05/107,602.73 = 42,162.97/x
  3. Step 3: Cross multiply
    77,973.05x = 107,602.73 × 42,162.97
  4. Step 4: Simplify right side
    77,973.05x = 4,536,850,676.91
  5. Step 5: Solve for x
    x = 4,536,850,676.91/77,973.05
  6. Step 6: Final answer
    x = 58,184.86

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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.