Home / 81,646.58-112,664.50-45,828.38

Finding the Fourth Proportional to 81,646.58, 112,664.50 and 45,828.38

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Solution

The fourth proportional to 81,646.58, 112,664.50 and 45,828.38 is: 63,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,646.58 : 112,664.50 = 45,828.38 : x
  2. Step 2: Convert to fraction form
    81,646.58/112,664.50 = 45,828.38/x
  3. Step 3: Cross multiply
    81,646.58x = 112,664.50 × 45,828.38
  4. Step 4: Simplify right side
    81,646.58x = 5,163,231,518.51
  5. Step 5: Solve for x
    x = 5,163,231,518.51/81,646.58
  6. Step 6: Final answer
    x = 63,238.80

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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.