Home / 74,710.15-103,103.65-42,014.85

Finding the Fourth Proportional to 74,710.15, 103,103.65 and 42,014.85

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Solution

The fourth proportional to 74,710.15, 103,103.65 and 42,014.85 is: 57,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,710.15 : 103,103.65 = 42,014.85 : x
  2. Step 2: Convert to fraction form
    74,710.15/103,103.65 = 42,014.85/x
  3. Step 3: Cross multiply
    74,710.15x = 103,103.65 × 42,014.85
  4. Step 4: Simplify right side
    74,710.15x = 4,331,884,284.17
  5. Step 5: Solve for x
    x = 4,331,884,284.17/74,710.15
  6. Step 6: Final answer
    x = 57,982.54

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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.