Home / 81,562.16-112,646.97-56,146.50

Finding the Fourth Proportional to 81,562.16, 112,646.97 and 56,146.50

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Solution

The fourth proportional to 81,562.16, 112,646.97 and 56,146.50 is: 77,544.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,562.16 : 112,646.97 = 56,146.50 : x
  2. Step 2: Convert to fraction form
    81,562.16/112,646.97 = 56,146.50/x
  3. Step 3: Cross multiply
    81,562.16x = 112,646.97 × 56,146.50
  4. Step 4: Simplify right side
    81,562.16x = 6,324,733,101.11
  5. Step 5: Solve for x
    x = 6,324,733,101.11/81,562.16
  6. Step 6: Final answer
    x = 77,544.94

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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.