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Finding the Fourth Proportional to 56,499.92, 77,998.92 and 39,807.44

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Solution

The fourth proportional to 56,499.92, 77,998.92 and 39,807.44 is: 54,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,499.92 : 77,998.92 = 39,807.44 : x
  2. Step 2: Convert to fraction form
    56,499.92/77,998.92 = 39,807.44/x
  3. Step 3: Cross multiply
    56,499.92x = 77,998.92 × 39,807.44
  4. Step 4: Simplify right side
    56,499.92x = 3,104,937,327.96
  5. Step 5: Solve for x
    x = 3,104,937,327.96/56,499.92
  6. Step 6: Final answer
    x = 54,954.72

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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.