Home / 81,505.64-112,478.07-47,537.58

Finding the Fourth Proportional to 81,505.64, 112,478.07 and 47,537.58

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Solution

The fourth proportional to 81,505.64, 112,478.07 and 47,537.58 is: 65,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505.64 : 112,478.07 = 47,537.58 : x
  2. Step 2: Convert to fraction form
    81,505.64/112,478.07 = 47,537.58/x
  3. Step 3: Cross multiply
    81,505.64x = 112,478.07 × 47,537.58
  4. Step 4: Simplify right side
    81,505.64x = 5,346,935,250.87
  5. Step 5: Solve for x
    x = 5,346,935,250.87/81,505.64
  6. Step 6: Final answer
    x = 65,602.03

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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.