Home / 74,397.08-102,721.43-45,755.28

Finding the Fourth Proportional to 74,397.08, 102,721.43 and 45,755.28

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Solution

The fourth proportional to 74,397.08, 102,721.43 and 45,755.28 is: 63,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,397.08 : 102,721.43 = 45,755.28 : x
  2. Step 2: Convert to fraction form
    74,397.08/102,721.43 = 45,755.28/x
  3. Step 3: Cross multiply
    74,397.08x = 102,721.43 × 45,755.28
  4. Step 4: Simplify right side
    74,397.08x = 4,700,047,906.04
  5. Step 5: Solve for x
    x = 4,700,047,906.04/74,397.08
  6. Step 6: Final answer
    x = 63,175.16

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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.