Home / 81,557.70-112,542.06-45,740.79

Finding the Fourth Proportional to 81,557.70, 112,542.06 and 45,740.79

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Solution

The fourth proportional to 81,557.70, 112,542.06 and 45,740.79 is: 63,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,557.70 : 112,542.06 = 45,740.79 : x
  2. Step 2: Convert to fraction form
    81,557.70/112,542.06 = 45,740.79/x
  3. Step 3: Cross multiply
    81,557.70x = 112,542.06 × 45,740.79
  4. Step 4: Simplify right side
    81,557.70x = 5,147,762,732.63
  5. Step 5: Solve for x
    x = 5,147,762,732.63/81,557.70
  6. Step 6: Final answer
    x = 63,118.05

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1.5x scale

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.