Home / 81,548.98-112,541.20-45,742.32

Finding the Fourth Proportional to 81,548.98, 112,541.20 and 45,742.32

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Solution

The fourth proportional to 81,548.98, 112,541.20 and 45,742.32 is: 63,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,548.98 : 112,541.20 = 45,742.32 : x
  2. Step 2: Convert to fraction form
    81,548.98/112,541.20 = 45,742.32/x
  3. Step 3: Cross multiply
    81,548.98x = 112,541.20 × 45,742.32
  4. Step 4: Simplify right side
    81,548.98x = 5,147,895,469.23
  5. Step 5: Solve for x
    x = 5,147,895,469.23/81,548.98
  6. Step 6: Final answer
    x = 63,126.43

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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.