Home / 56,447.94-77,899.06-30,956.64

Finding the Fourth Proportional to 56,447.94, 77,899.06 and 30,956.64

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Solution

The fourth proportional to 56,447.94, 77,899.06 and 30,956.64 is: 42,720.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,447.94 : 77,899.06 = 30,956.64 : x
  2. Step 2: Convert to fraction form
    56,447.94/77,899.06 = 30,956.64/x
  3. Step 3: Cross multiply
    56,447.94x = 77,899.06 × 30,956.64
  4. Step 4: Simplify right side
    56,447.94x = 2,411,493,156.76
  5. Step 5: Solve for x
    x = 2,411,493,156.76/56,447.94
  6. Step 6: Final answer
    x = 42,720.66

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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.