Home / 86,739.57-119,720.66-56,472.26

Finding the Fourth Proportional to 86,739.57, 119,720.66 and 56,472.26

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Solution

The fourth proportional to 86,739.57, 119,720.66 and 56,472.26 is: 77,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,739.57 : 119,720.66 = 56,472.26 : x
  2. Step 2: Convert to fraction form
    86,739.57/119,720.66 = 56,472.26/x
  3. Step 3: Cross multiply
    86,739.57x = 119,720.66 × 56,472.26
  4. Step 4: Simplify right side
    86,739.57x = 6,760,895,357.93
  5. Step 5: Solve for x
    x = 6,760,895,357.93/86,739.57
  6. Step 6: Final answer
    x = 77,944.76

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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.