Home / 77,923.05-107,534.31-42,112.98

Finding the Fourth Proportional to 77,923.05, 107,534.31 and 42,112.98

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Solution

The fourth proportional to 77,923.05, 107,534.31 and 42,112.98 is: 58,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,923.05 : 107,534.31 = 42,112.98 : x
  2. Step 2: Convert to fraction form
    77,923.05/107,534.31 = 42,112.98/x
  3. Step 3: Cross multiply
    77,923.05x = 107,534.31 × 42,112.98
  4. Step 4: Simplify right side
    77,923.05x = 4,528,590,088.42
  5. Step 5: Solve for x
    x = 4,528,590,088.42/77,923.05
  6. Step 6: Final answer
    x = 58,116.18

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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.