Home / 56,659.24-78,190.50-31,509.64

Finding the Fourth Proportional to 56,659.24, 78,190.50 and 31,509.64

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Solution

The fourth proportional to 56,659.24, 78,190.50 and 31,509.64 is: 43,483.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,659.24 : 78,190.50 = 31,509.64 : x
  2. Step 2: Convert to fraction form
    56,659.24/78,190.50 = 31,509.64/x
  3. Step 3: Cross multiply
    56,659.24x = 78,190.50 × 31,509.64
  4. Step 4: Simplify right side
    56,659.24x = 2,463,754,506.42
  5. Step 5: Solve for x
    x = 2,463,754,506.42/56,659.24
  6. Step 6: Final answer
    x = 43,483.72

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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.