Home / 74,785.14-112,226.31-39,749.40

Finding the Fourth Proportional to 74,785.14, 112,226.31 and 39,749.40

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Solution

The fourth proportional to 74,785.14, 112,226.31 and 39,749.40 is: 59,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.14 : 112,226.31 = 39,749.40 : x
  2. Step 2: Convert to fraction form
    74,785.14/112,226.31 = 39,749.40/x
  3. Step 3: Cross multiply
    74,785.14x = 112,226.31 × 39,749.40
  4. Step 4: Simplify right side
    74,785.14x = 4,460,928,486.71
  5. Step 5: Solve for x
    x = 4,460,928,486.71/74,785.14
  6. Step 6: Final answer
    x = 59,649.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.