Home / 74,572.15-102,911.72-40,582.83

Finding the Fourth Proportional to 74,572.15, 102,911.72 and 40,582.83

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Solution

The fourth proportional to 74,572.15, 102,911.72 and 40,582.83 is: 56,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572.15 : 102,911.72 = 40,582.83 : x
  2. Step 2: Convert to fraction form
    74,572.15/102,911.72 = 40,582.83/x
  3. Step 3: Cross multiply
    74,572.15x = 102,911.72 × 40,582.83
  4. Step 4: Simplify right side
    74,572.15x = 4,176,448,323.21
  5. Step 5: Solve for x
    x = 4,176,448,323.21/74,572.15
  6. Step 6: Final answer
    x = 56,005.47

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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.