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Finding the Fourth Proportional to 56,228.68, 77,653.68 and 48,638.57

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Solution

The fourth proportional to 56,228.68, 77,653.68 and 48,638.57 is: 67,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,228.68 : 77,653.68 = 48,638.57 : x
  2. Step 2: Convert to fraction form
    56,228.68/77,653.68 = 48,638.57/x
  3. Step 3: Cross multiply
    56,228.68x = 77,653.68 × 48,638.57
  4. Step 4: Simplify right side
    56,228.68x = 3,776,963,950.44
  5. Step 5: Solve for x
    x = 3,776,963,950.44/56,228.68
  6. Step 6: Final answer
    x = 67,171.49

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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.