Home / 77,973.91-107,601.57-43,981.90

Finding the Fourth Proportional to 77,973.91, 107,601.57 and 43,981.90

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Solution

The fourth proportional to 77,973.91, 107,601.57 and 43,981.90 is: 60,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,973.91 : 107,601.57 = 43,981.90 : x
  2. Step 2: Convert to fraction form
    77,973.91/107,601.57 = 43,981.90/x
  3. Step 3: Cross multiply
    77,973.91x = 107,601.57 × 43,981.90
  4. Step 4: Simplify right side
    77,973.91x = 4,732,521,222.58
  5. Step 5: Solve for x
    x = 4,732,521,222.58/77,973.91
  6. Step 6: Final answer
    x = 60,693.65

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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.