Home / 81,248.09-112,127.87-45,441.43

Finding the Fourth Proportional to 81,248.09, 112,127.87 and 45,441.43

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Solution

The fourth proportional to 81,248.09, 112,127.87 and 45,441.43 is: 62,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,248.09 : 112,127.87 = 45,441.43 : x
  2. Step 2: Convert to fraction form
    81,248.09/112,127.87 = 45,441.43/x
  3. Step 3: Cross multiply
    81,248.09x = 112,127.87 × 45,441.43
  4. Step 4: Simplify right side
    81,248.09x = 5,095,250,588.94
  5. Step 5: Solve for x
    x = 5,095,250,588.94/81,248.09
  6. Step 6: Final answer
    x = 62,712.25

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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.