Home / 74,282.52-102,509.28-40,290.69

Finding the Fourth Proportional to 74,282.52, 102,509.28 and 40,290.69

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Solution

The fourth proportional to 74,282.52, 102,509.28 and 40,290.69 is: 55,600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,282.52 : 102,509.28 = 40,290.69 : x
  2. Step 2: Convert to fraction form
    74,282.52/102,509.28 = 40,290.69/x
  3. Step 3: Cross multiply
    74,282.52x = 102,509.28 × 40,290.69
  4. Step 4: Simplify right side
    74,282.52x = 4,130,169,622.60
  5. Step 5: Solve for x
    x = 4,130,169,622.60/74,282.52
  6. Step 6: Final answer
    x = 55,600.83

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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.