Home / 56,760.52-78,328.74-31,610.20

Finding the Fourth Proportional to 56,760.52, 78,328.74 and 31,610.20

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Solution

The fourth proportional to 56,760.52, 78,328.74 and 31,610.20 is: 43,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,760.52 : 78,328.74 = 31,610.20 : x
  2. Step 2: Convert to fraction form
    56,760.52/78,328.74 = 31,610.20/x
  3. Step 3: Cross multiply
    56,760.52x = 78,328.74 × 31,610.20
  4. Step 4: Simplify right side
    56,760.52x = 2,475,987,137.15
  5. Step 5: Solve for x
    x = 2,475,987,137.15/56,760.52
  6. Step 6: Final answer
    x = 43,621.64

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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.