Home / 72,871.03-109,306.57-56,255.32

Finding the Fourth Proportional to 72,871.03, 109,306.57 and 56,255.32

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Solution

The fourth proportional to 72,871.03, 109,306.57 and 56,255.32 is: 84,383.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,871.03 : 109,306.57 = 56,255.32 : x
  2. Step 2: Convert to fraction form
    72,871.03/109,306.57 = 56,255.32/x
  3. Step 3: Cross multiply
    72,871.03x = 109,306.57 × 56,255.32
  4. Step 4: Simplify right side
    72,871.03x = 6,149,076,073.45
  5. Step 5: Solve for x
    x = 6,149,076,073.45/72,871.03
  6. Step 6: Final answer
    x = 84,383.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.