Home / 84,731.20-116,878.32-56,051.68

Finding the Fourth Proportional to 84,731.20, 116,878.32 and 56,051.68

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Solution

The fourth proportional to 84,731.20, 116,878.32 and 56,051.68 is: 77,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,731.20 : 116,878.32 = 56,051.68 : x
  2. Step 2: Convert to fraction form
    84,731.20/116,878.32 = 56,051.68/x
  3. Step 3: Cross multiply
    84,731.20x = 116,878.32 × 56,051.68
  4. Step 4: Simplify right side
    84,731.20x = 6,551,226,191.58
  5. Step 5: Solve for x
    x = 6,551,226,191.58/84,731.20
  6. Step 6: Final answer
    x = 77,317.76

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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.