Home / 81,338.49-112,246.99-45,535.39

Finding the Fourth Proportional to 81,338.49, 112,246.99 and 45,535.39

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Solution

The fourth proportional to 81,338.49, 112,246.99 and 45,535.39 is: 62,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338.49 : 112,246.99 = 45,535.39 : x
  2. Step 2: Convert to fraction form
    81,338.49/112,246.99 = 45,535.39/x
  3. Step 3: Cross multiply
    81,338.49x = 112,246.99 × 45,535.39
  4. Step 4: Simplify right side
    81,338.49x = 5,111,210,071.52
  5. Step 5: Solve for x
    x = 5,111,210,071.52/81,338.49
  6. Step 6: Final answer
    x = 62,838.76

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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.