Home / 81,642.51-112,566.60-56,098.35

Finding the Fourth Proportional to 81,642.51, 112,566.60 and 56,098.35

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Solution

The fourth proportional to 81,642.51, 112,566.60 and 56,098.35 is: 77,346.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,642.51 : 112,566.60 = 56,098.35 : x
  2. Step 2: Convert to fraction form
    81,642.51/112,566.60 = 56,098.35/x
  3. Step 3: Cross multiply
    81,642.51x = 112,566.60 × 56,098.35
  4. Step 4: Simplify right side
    81,642.51x = 6,314,800,525.11
  5. Step 5: Solve for x
    x = 6,314,800,525.11/81,642.51
  6. Step 6: Final answer
    x = 77,346.97

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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.