Home / 81,338.60-112,246.16-45,528.62

Finding the Fourth Proportional to 81,338.60, 112,246.16 and 45,528.62

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Solution

The fourth proportional to 81,338.60, 112,246.16 and 45,528.62 is: 62,828.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338.60 : 112,246.16 = 45,528.62 : x
  2. Step 2: Convert to fraction form
    81,338.60/112,246.16 = 45,528.62/x
  3. Step 3: Cross multiply
    81,338.60x = 112,246.16 × 45,528.62
  4. Step 4: Simplify right side
    81,338.60x = 5,110,411,976.23
  5. Step 5: Solve for x
    x = 5,110,411,976.23/81,338.60
  6. Step 6: Final answer
    x = 62,828.86

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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.