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Finding the Fourth Proportional to 77,155.44, 115,653.96 and 37,663.98

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Solution

The fourth proportional to 77,155.44, 115,653.96 and 37,663.98 is: 56,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,155.44 : 115,653.96 = 37,663.98 : x
  2. Step 2: Convert to fraction form
    77,155.44/115,653.96 = 37,663.98/x
  3. Step 3: Cross multiply
    77,155.44x = 115,653.96 × 37,663.98
  4. Step 4: Simplify right side
    77,155.44x = 4,355,988,436.36
  5. Step 5: Solve for x
    x = 4,355,988,436.36/77,155.44
  6. Step 6: Final answer
    x = 56,457.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.