Home / 101,872.10-140,581.32-56,547.44

Finding the Fourth Proportional to 101,872.10, 140,581.32 and 56,547.44

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Solution

The fourth proportional to 101,872.10, 140,581.32 and 56,547.44 is: 78,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,872.10 : 140,581.32 = 56,547.44 : x
  2. Step 2: Convert to fraction form
    101,872.10/140,581.32 = 56,547.44/x
  3. Step 3: Cross multiply
    101,872.10x = 140,581.32 × 56,547.44
  4. Step 4: Simplify right side
    101,872.10x = 7,949,513,757.82
  5. Step 5: Solve for x
    x = 7,949,513,757.82/101,872.10
  6. Step 6: Final answer
    x = 78,034.26

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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.