Home / 58,216.75-80,339.12-31,720.75

Finding the Fourth Proportional to 58,216.75, 80,339.12 and 31,720.75

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Solution

The fourth proportional to 58,216.75, 80,339.12 and 31,720.75 is: 43,774.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,216.75 : 80,339.12 = 31,720.75 : x
  2. Step 2: Convert to fraction form
    58,216.75/80,339.12 = 31,720.75/x
  3. Step 3: Cross multiply
    58,216.75x = 80,339.12 × 31,720.75
  4. Step 4: Simplify right side
    58,216.75x = 2,548,417,140.74
  5. Step 5: Solve for x
    x = 2,548,417,140.74/58,216.75
  6. Step 6: Final answer
    x = 43,774.64

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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.