Home / 74,651.28-103,032.18-42,830.70

Finding the Fourth Proportional to 74,651.28, 103,032.18 and 42,830.70

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Solution

The fourth proportional to 74,651.28, 103,032.18 and 42,830.70 is: 59,114.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,651.28 : 103,032.18 = 42,830.70 : x
  2. Step 2: Convert to fraction form
    74,651.28/103,032.18 = 42,830.70/x
  3. Step 3: Cross multiply
    74,651.28x = 103,032.18 × 42,830.70
  4. Step 4: Simplify right side
    74,651.28x = 4,412,940,391.93
  5. Step 5: Solve for x
    x = 4,412,940,391.93/74,651.28
  6. Step 6: Final answer
    x = 59,114.06

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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.