Home / 74,897.10-103,358.43-40,905.18

Finding the Fourth Proportional to 74,897.10, 103,358.43 and 40,905.18

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Solution

The fourth proportional to 74,897.10, 103,358.43 and 40,905.18 is: 56,449.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,897.10 : 103,358.43 = 40,905.18 : x
  2. Step 2: Convert to fraction form
    74,897.10/103,358.43 = 40,905.18/x
  3. Step 3: Cross multiply
    74,897.10x = 103,358.43 × 40,905.18
  4. Step 4: Simplify right side
    74,897.10x = 4,227,895,183.67
  5. Step 5: Solve for x
    x = 4,227,895,183.67/74,897.10
  6. Step 6: Final answer
    x = 56,449.38

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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.