Home / 81,575.56-112,574.52-47,607.40

Finding the Fourth Proportional to 81,575.56, 112,574.52 and 47,607.40

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Solution

The fourth proportional to 81,575.56, 112,574.52 and 47,607.40 is: 65,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,575.56 : 112,574.52 = 47,607.40 : x
  2. Step 2: Convert to fraction form
    81,575.56/112,574.52 = 47,607.40/x
  3. Step 3: Cross multiply
    81,575.56x = 112,574.52 × 47,607.40
  4. Step 4: Simplify right side
    81,575.56x = 5,359,380,203.45
  5. Step 5: Solve for x
    x = 5,359,380,203.45/81,575.56
  6. Step 6: Final answer
    x = 65,698.36

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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.