Home / 74,869.91-103,317.76-40,877.77

Finding the Fourth Proportional to 74,869.91, 103,317.76 and 40,877.77

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Solution

The fourth proportional to 74,869.91, 103,317.76 and 40,877.77 is: 56,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,869.91 : 103,317.76 = 40,877.77 : x
  2. Step 2: Convert to fraction form
    74,869.91/103,317.76 = 40,877.77/x
  3. Step 3: Cross multiply
    74,869.91x = 103,317.76 × 40,877.77
  4. Step 4: Simplify right side
    74,869.91x = 4,223,399,616.72
  5. Step 5: Solve for x
    x = 4,223,399,616.72/74,869.91
  6. Step 6: Final answer
    x = 56,409.84

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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.