Home / 58,784.88-81,178.48-40,928.72

Finding the Fourth Proportional to 58,784.88, 81,178.48 and 40,928.72

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Solution

The fourth proportional to 58,784.88, 81,178.48 and 40,928.72 is: 56,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,784.88 : 81,178.48 = 40,928.72 : x
  2. Step 2: Convert to fraction form
    58,784.88/81,178.48 = 40,928.72/x
  3. Step 3: Cross multiply
    58,784.88x = 81,178.48 × 40,928.72
  4. Step 4: Simplify right side
    58,784.88x = 3,322,531,277.95
  5. Step 5: Solve for x
    x = 3,322,531,277.95/58,784.88
  6. Step 6: Final answer
    x = 56,520.17

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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.