Home / 81,410.16-112,289.93-57,262.34

Finding the Fourth Proportional to 81,410.16, 112,289.93 and 57,262.34

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Solution

The fourth proportional to 81,410.16, 112,289.93 and 57,262.34 is: 78,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,410.16 : 112,289.93 = 57,262.34 : x
  2. Step 2: Convert to fraction form
    81,410.16/112,289.93 = 57,262.34/x
  3. Step 3: Cross multiply
    81,410.16x = 112,289.93 × 57,262.34
  4. Step 4: Simplify right side
    81,410.16x = 6,429,984,150.24
  5. Step 5: Solve for x
    x = 6,429,984,150.24/81,410.16
  6. Step 6: Final answer
    x = 78,982.58

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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.