Home / 56,659.68-78,190.92-31,509.36

Finding the Fourth Proportional to 56,659.68, 78,190.92 and 31,509.36

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Solution

The fourth proportional to 56,659.68, 78,190.92 and 31,509.36 is: 43,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,659.68 : 78,190.92 = 31,509.36 : x
  2. Step 2: Convert to fraction form
    56,659.68/78,190.92 = 31,509.36/x
  3. Step 3: Cross multiply
    56,659.68x = 78,190.92 × 31,509.36
  4. Step 4: Simplify right side
    56,659.68x = 2,463,745,847.01
  5. Step 5: Solve for x
    x = 2,463,745,847.01/56,659.68
  6. Step 6: Final answer
    x = 43,483.23

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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.