Home / 77,883.05-107,478.46-42,072.95

Finding the Fourth Proportional to 77,883.05, 107,478.46 and 42,072.95

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Solution

The fourth proportional to 77,883.05, 107,478.46 and 42,072.95 is: 58,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,883.05 : 107,478.46 = 42,072.95 : x
  2. Step 2: Convert to fraction form
    77,883.05/107,478.46 = 42,072.95/x
  3. Step 3: Cross multiply
    77,883.05x = 107,478.46 × 42,072.95
  4. Step 4: Simplify right side
    77,883.05x = 4,521,935,873.66
  5. Step 5: Solve for x
    x = 4,521,935,873.66/77,883.05
  6. Step 6: Final answer
    x = 58,060.59

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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.