Home / 81,250.66-121,774.52-56,090.31

Finding the Fourth Proportional to 81,250.66, 121,774.52 and 56,090.31

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Solution

The fourth proportional to 81,250.66, 121,774.52 and 56,090.31 is: 84,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,250.66 : 121,774.52 = 56,090.31 : x
  2. Step 2: Convert to fraction form
    81,250.66/121,774.52 = 56,090.31/x
  3. Step 3: Cross multiply
    81,250.66x = 121,774.52 × 56,090.31
  4. Step 4: Simplify right side
    81,250.66x = 6,830,370,260.47
  5. Step 5: Solve for x
    x = 6,830,370,260.47/81,250.66
  6. Step 6: Final answer
    x = 84,065.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.