Home / 77,266.56-115,829.76-28,007.04

Finding the Fourth Proportional to 77,266.56, 115,829.76 and 28,007.04

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Solution

The fourth proportional to 77,266.56, 115,829.76 and 28,007.04 is: 41,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,266.56 : 115,829.76 = 28,007.04 : x
  2. Step 2: Convert to fraction form
    77,266.56/115,829.76 = 28,007.04/x
  3. Step 3: Cross multiply
    77,266.56x = 115,829.76 × 28,007.04
  4. Step 4: Simplify right side
    77,266.56x = 3,244,048,721.51
  5. Step 5: Solve for x
    x = 3,244,048,721.51/77,266.56
  6. Step 6: Final answer
    x = 41,985.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.