Home / 74,701.54-103,088.15-40,710.04

Finding the Fourth Proportional to 74,701.54, 103,088.15 and 40,710.04

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Solution

The fourth proportional to 74,701.54, 103,088.15 and 40,710.04 is: 56,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.54 : 103,088.15 = 40,710.04 : x
  2. Step 2: Convert to fraction form
    74,701.54/103,088.15 = 40,710.04/x
  3. Step 3: Cross multiply
    74,701.54x = 103,088.15 × 40,710.04
  4. Step 4: Simplify right side
    74,701.54x = 4,196,722,248.76
  5. Step 5: Solve for x
    x = 4,196,722,248.76/74,701.54
  6. Step 6: Final answer
    x = 56,179.86

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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.