Home / 74,854.16-103,299.01-40,863.40

Finding the Fourth Proportional to 74,854.16, 103,299.01 and 40,863.40

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Solution

The fourth proportional to 74,854.16, 103,299.01 and 40,863.40 is: 56,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,854.16 : 103,299.01 = 40,863.40 : x
  2. Step 2: Convert to fraction form
    74,854.16/103,299.01 = 40,863.40/x
  3. Step 3: Cross multiply
    74,854.16x = 103,299.01 × 40,863.40
  4. Step 4: Simplify right side
    74,854.16x = 4,221,148,765.23
  5. Step 5: Solve for x
    x = 4,221,148,765.23/74,854.16
  6. Step 6: Final answer
    x = 56,391.64

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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.