Home / 81,372.48-112,284.16-45,559.68

Finding the Fourth Proportional to 81,372.48, 112,284.16 and 45,559.68

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Solution

The fourth proportional to 81,372.48, 112,284.16 and 45,559.68 is: 62,866.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,372.48 : 112,284.16 = 45,559.68 : x
  2. Step 2: Convert to fraction form
    81,372.48/112,284.16 = 45,559.68/x
  3. Step 3: Cross multiply
    81,372.48x = 112,284.16 × 45,559.68
  4. Step 4: Simplify right side
    81,372.48x = 5,115,630,398.67
  5. Step 5: Solve for x
    x = 5,115,630,398.67/81,372.48
  6. Step 6: Final answer
    x = 62,866.84

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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.