Home / 74,789.76-103,210.20-40,799.02

Finding the Fourth Proportional to 74,789.76, 103,210.20 and 40,799.02

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Solution

The fourth proportional to 74,789.76, 103,210.20 and 40,799.02 is: 56,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,789.76 : 103,210.20 = 40,799.02 : x
  2. Step 2: Convert to fraction form
    74,789.76/103,210.20 = 40,799.02/x
  3. Step 3: Cross multiply
    74,789.76x = 103,210.20 × 40,799.02
  4. Step 4: Simplify right side
    74,789.76x = 4,210,875,014.00
  5. Step 5: Solve for x
    x = 4,210,875,014.00/74,789.76
  6. Step 6: Final answer
    x = 56,302.83

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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.