Home / 74,712.98-103,141.55-49,256.30

Finding the Fourth Proportional to 74,712.98, 103,141.55 and 49,256.30

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Solution

The fourth proportional to 74,712.98, 103,141.55 and 49,256.30 is: 67,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,712.98 : 103,141.55 = 49,256.30 : x
  2. Step 2: Convert to fraction form
    74,712.98/103,141.55 = 49,256.30/x
  3. Step 3: Cross multiply
    74,712.98x = 103,141.55 × 49,256.30
  4. Step 4: Simplify right side
    74,712.98x = 5,080,371,510.26
  5. Step 5: Solve for x
    x = 5,080,371,510.26/74,712.98
  6. Step 6: Final answer
    x = 67,998.51

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1.5x scale

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.