Home / 81,593.48-112,509.06-56,399.24

Finding the Fourth Proportional to 81,593.48, 112,509.06 and 56,399.24

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Solution

The fourth proportional to 81,593.48, 112,509.06 and 56,399.24 is: 77,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,593.48 : 112,509.06 = 56,399.24 : x
  2. Step 2: Convert to fraction form
    81,593.48/112,509.06 = 56,399.24/x
  3. Step 3: Cross multiply
    81,593.48x = 112,509.06 × 56,399.24
  4. Step 4: Simplify right side
    81,593.48x = 6,345,425,477.11
  5. Step 5: Solve for x
    x = 6,345,425,477.11/81,593.48
  6. Step 6: Final answer
    x = 77,768.78

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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.