Home / 81,442.26-112,388.90-45,632.16

Finding the Fourth Proportional to 81,442.26, 112,388.90 and 45,632.16

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Solution

The fourth proportional to 81,442.26, 112,388.90 and 45,632.16 is: 62,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,442.26 : 112,388.90 = 45,632.16 : x
  2. Step 2: Convert to fraction form
    81,442.26/112,388.90 = 45,632.16/x
  3. Step 3: Cross multiply
    81,442.26x = 112,388.90 × 45,632.16
  4. Step 4: Simplify right side
    81,442.26x = 5,128,547,819.16
  5. Step 5: Solve for x
    x = 5,128,547,819.16/81,442.26
  6. Step 6: Final answer
    x = 62,971.58

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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.