Home / 74,854.34-103,299.20-40,862.86

Finding the Fourth Proportional to 74,854.34, 103,299.20 and 40,862.86

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Solution

The fourth proportional to 74,854.34, 103,299.20 and 40,862.86 is: 56,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,854.34 : 103,299.20 = 40,862.86 : x
  2. Step 2: Convert to fraction form
    74,854.34/103,299.20 = 40,862.86/x
  3. Step 3: Cross multiply
    74,854.34x = 103,299.20 × 40,862.86
  4. Step 4: Simplify right side
    74,854.34x = 4,221,100,747.71
  5. Step 5: Solve for x
    x = 4,221,100,747.71/74,854.34
  6. Step 6: Final answer
    x = 56,390.86

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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.