Home / 81,341.68-112,252.44-45,535.12

Finding the Fourth Proportional to 81,341.68, 112,252.44 and 45,535.12

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Solution

The fourth proportional to 81,341.68, 112,252.44 and 45,535.12 is: 62,838.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,341.68 : 112,252.44 = 45,535.12 : x
  2. Step 2: Convert to fraction form
    81,341.68/112,252.44 = 45,535.12/x
  3. Step 3: Cross multiply
    81,341.68x = 112,252.44 × 45,535.12
  4. Step 4: Simplify right side
    81,341.68x = 5,111,428,325.69
  5. Step 5: Solve for x
    x = 5,111,428,325.69/81,341.68
  6. Step 6: Final answer
    x = 62,838.98

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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.