Home / 81,186.47-112,037.00-45,376.44

Finding the Fourth Proportional to 81,186.47, 112,037.00 and 45,376.44

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Solution

The fourth proportional to 81,186.47, 112,037.00 and 45,376.44 is: 62,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,186.47 : 112,037.00 = 45,376.44 : x
  2. Step 2: Convert to fraction form
    81,186.47/112,037.00 = 45,376.44/x
  3. Step 3: Cross multiply
    81,186.47x = 112,037.00 × 45,376.44
  4. Step 4: Simplify right side
    81,186.47x = 5,083,839,981.40
  5. Step 5: Solve for x
    x = 5,083,839,981.40/81,186.47
  6. Step 6: Final answer
    x = 62,619.30

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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.