Home / 74,789.74-112,151.73-28,009.81

Finding the Fourth Proportional to 74,789.74, 112,151.73 and 28,009.81

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Solution

The fourth proportional to 74,789.74, 112,151.73 and 28,009.81 is: 42,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,789.74 : 112,151.73 = 28,009.81 : x
  2. Step 2: Convert to fraction form
    74,789.74/112,151.73 = 28,009.81/x
  3. Step 3: Cross multiply
    74,789.74x = 112,151.73 × 28,009.81
  4. Step 4: Simplify right side
    74,789.74x = 3,141,348,087.71
  5. Step 5: Solve for x
    x = 3,141,348,087.71/74,789.74
  6. Step 6: Final answer
    x = 42,002.40

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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.