Home / 78,455.63-117,617.10-34,049.00

Finding the Fourth Proportional to 78,455.63, 117,617.10 and 34,049.00

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Solution

The fourth proportional to 78,455.63, 117,617.10 and 34,049.00 is: 51,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,455.63 : 117,617.10 = 34,049.00 : x
  2. Step 2: Convert to fraction form
    78,455.63/117,617.10 = 34,049.00/x
  3. Step 3: Cross multiply
    78,455.63x = 117,617.10 × 34,049.00
  4. Step 4: Simplify right side
    78,455.63x = 4,004,744,049.81
  5. Step 5: Solve for x
    x = 4,004,744,049.81/78,455.63
  6. Step 6: Final answer
    x = 51,044.70

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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.