Home / 81,525.47-112,466.88-57,665.30

Finding the Fourth Proportional to 81,525.47, 112,466.88 and 57,665.30

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Solution

The fourth proportional to 81,525.47, 112,466.88 and 57,665.30 is: 79,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,525.47 : 112,466.88 = 57,665.30 : x
  2. Step 2: Convert to fraction form
    81,525.47/112,466.88 = 57,665.30/x
  3. Step 3: Cross multiply
    81,525.47x = 112,466.88 × 57,665.30
  4. Step 4: Simplify right side
    81,525.47x = 6,485,435,812.93
  5. Step 5: Solve for x
    x = 6,485,435,812.93/81,525.47
  6. Step 6: Final answer
    x = 79,551.04

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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.