Home / 78,580.08-108,431.73-46,312.68

Finding the Fourth Proportional to 78,580.08, 108,431.73 and 46,312.68

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Solution

The fourth proportional to 78,580.08, 108,431.73 and 46,312.68 is: 63,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,580.08 : 108,431.73 = 46,312.68 : x
  2. Step 2: Convert to fraction form
    78,580.08/108,431.73 = 46,312.68/x
  3. Step 3: Cross multiply
    78,580.08x = 108,431.73 × 46,312.68
  4. Step 4: Simplify right side
    78,580.08x = 5,021,764,013.34
  5. Step 5: Solve for x
    x = 5,021,764,013.34/78,580.08
  6. Step 6: Final answer
    x = 63,906.32

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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.