Home / 81,526.04-122,249.57-47,801.28

Finding the Fourth Proportional to 81,526.04, 122,249.57 and 47,801.28

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Solution

The fourth proportional to 81,526.04, 122,249.57 and 47,801.28 is: 71,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,526.04 : 122,249.57 = 47,801.28 : x
  2. Step 2: Convert to fraction form
    81,526.04/122,249.57 = 47,801.28/x
  3. Step 3: Cross multiply
    81,526.04x = 122,249.57 × 47,801.28
  4. Step 4: Simplify right side
    81,526.04x = 5,843,685,686.44
  5. Step 5: Solve for x
    x = 5,843,685,686.44/81,526.04
  6. Step 6: Final answer
    x = 71,678.77

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1.5x scale

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.