Home / 81,619.02-112,525.96-53,275.50

Finding the Fourth Proportional to 81,619.02, 112,525.96 and 53,275.50

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Solution

The fourth proportional to 81,619.02, 112,525.96 and 53,275.50 is: 73,449.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,619.02 : 112,525.96 = 53,275.50 : x
  2. Step 2: Convert to fraction form
    81,619.02/112,525.96 = 53,275.50/x
  3. Step 3: Cross multiply
    81,619.02x = 112,525.96 × 53,275.50
  4. Step 4: Simplify right side
    81,619.02x = 5,994,876,781.98
  5. Step 5: Solve for x
    x = 5,994,876,781.98/81,619.02
  6. Step 6: Final answer
    x = 73,449.51

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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.