Home / 75,159.54-103,789.89-56,263.86

Finding the Fourth Proportional to 75,159.54, 103,789.89 and 56,263.86

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Solution

The fourth proportional to 75,159.54, 103,789.89 and 56,263.86 is: 77,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,159.54 : 103,789.89 = 56,263.86 : x
  2. Step 2: Convert to fraction form
    75,159.54/103,789.89 = 56,263.86/x
  3. Step 3: Cross multiply
    75,159.54x = 103,789.89 × 56,263.86
  4. Step 4: Simplify right side
    75,159.54x = 5,839,619,840.38
  5. Step 5: Solve for x
    x = 5,839,619,840.38/75,159.54
  6. Step 6: Final answer
    x = 77,696.32

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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.