Home / 78,394.10-108,228.74-51,614.45

Finding the Fourth Proportional to 78,394.10, 108,228.74 and 51,614.45

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Solution

The fourth proportional to 78,394.10, 108,228.74 and 51,614.45 is: 71,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,394.10 : 108,228.74 = 51,614.45 : x
  2. Step 2: Convert to fraction form
    78,394.10/108,228.74 = 51,614.45/x
  3. Step 3: Cross multiply
    78,394.10x = 108,228.74 × 51,614.45
  4. Step 4: Simplify right side
    78,394.10x = 5,586,166,090.08
  5. Step 5: Solve for x
    x = 5,586,166,090.08/78,394.10
  6. Step 6: Final answer
    x = 71,257.49

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1.5x scale

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.