Home / 78,345.77-117,533.23-25,792.16

Finding the Fourth Proportional to 78,345.77, 117,533.23 and 25,792.16

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Solution

The fourth proportional to 78,345.77, 117,533.23 and 25,792.16 is: 38,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345.77 : 117,533.23 = 25,792.16 : x
  2. Step 2: Convert to fraction form
    78,345.77/117,533.23 = 25,792.16/x
  3. Step 3: Cross multiply
    78,345.77x = 117,533.23 × 25,792.16
  4. Step 4: Simplify right side
    78,345.77x = 3,031,435,221.33
  5. Step 5: Solve for x
    x = 3,031,435,221.33/78,345.77
  6. Step 6: Final answer
    x = 38,693.03

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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.