Home / 78,522.93-117,815.64-28,606.41

Finding the Fourth Proportional to 78,522.93, 117,815.64 and 28,606.41

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Solution

The fourth proportional to 78,522.93, 117,815.64 and 28,606.41 is: 42,921.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,522.93 : 117,815.64 = 28,606.41 : x
  2. Step 2: Convert to fraction form
    78,522.93/117,815.64 = 28,606.41/x
  3. Step 3: Cross multiply
    78,522.93x = 117,815.64 × 28,606.41
  4. Step 4: Simplify right side
    78,522.93x = 3,370,282,502.25
  5. Step 5: Solve for x
    x = 3,370,282,502.25/78,522.93
  6. Step 6: Final answer
    x = 42,921.00

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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.