Home / 86,892.08-120,037.56-58,721.36

Finding the Fourth Proportional to 86,892.08, 120,037.56 and 58,721.36

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Solution

The fourth proportional to 86,892.08, 120,037.56 and 58,721.36 is: 81,120.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,892.08 : 120,037.56 = 58,721.36 : x
  2. Step 2: Convert to fraction form
    86,892.08/120,037.56 = 58,721.36/x
  3. Step 3: Cross multiply
    86,892.08x = 120,037.56 × 58,721.36
  4. Step 4: Simplify right side
    86,892.08x = 7,048,768,774.28
  5. Step 5: Solve for x
    x = 7,048,768,774.28/86,892.08
  6. Step 6: Final answer
    x = 81,120.96

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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.