Home / 56,700.16-78,247.20-31,207.60

Finding the Fourth Proportional to 56,700.16, 78,247.20 and 31,207.60

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Solution

The fourth proportional to 56,700.16, 78,247.20 and 31,207.60 is: 43,067.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,700.16 : 78,247.20 = 31,207.60 : x
  2. Step 2: Convert to fraction form
    56,700.16/78,247.20 = 31,207.60/x
  3. Step 3: Cross multiply
    56,700.16x = 78,247.20 × 31,207.60
  4. Step 4: Simplify right side
    56,700.16x = 2,441,907,318.72
  5. Step 5: Solve for x
    x = 2,441,907,318.72/56,700.16
  6. Step 6: Final answer
    x = 43,067.03

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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.