Home / 74,972.03-103,461.31-40,980.74

Finding the Fourth Proportional to 74,972.03, 103,461.31 and 40,980.74

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Solution

The fourth proportional to 74,972.03, 103,461.31 and 40,980.74 is: 56,553.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.03 : 103,461.31 = 40,980.74 : x
  2. Step 2: Convert to fraction form
    74,972.03/103,461.31 = 40,980.74/x
  3. Step 3: Cross multiply
    74,972.03x = 103,461.31 × 40,980.74
  4. Step 4: Simplify right side
    74,972.03x = 4,239,921,045.17
  5. Step 5: Solve for x
    x = 4,239,921,045.17/74,972.03
  6. Step 6: Final answer
    x = 56,553.37

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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.