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Finding the Fourth Proportional to 81,873.59, 112,984.00 and 45,574.79

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Solution

The fourth proportional to 81,873.59, 112,984.00 and 45,574.79 is: 62,892.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,873.59 : 112,984.00 = 45,574.79 : x
  2. Step 2: Convert to fraction form
    81,873.59/112,984.00 = 45,574.79/x
  3. Step 3: Cross multiply
    81,873.59x = 112,984.00 × 45,574.79
  4. Step 4: Simplify right side
    81,873.59x = 5,149,221,394.50
  5. Step 5: Solve for x
    x = 5,149,221,394.50/81,873.59
  6. Step 6: Final answer
    x = 62,892.34

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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.