Home / 78,416.28-108,214.92-42,606.58

Finding the Fourth Proportional to 78,416.28, 108,214.92 and 42,606.58

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Solution

The fourth proportional to 78,416.28, 108,214.92 and 42,606.58 is: 58,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,416.28 : 108,214.92 = 42,606.58 : x
  2. Step 2: Convert to fraction form
    78,416.28/108,214.92 = 42,606.58/x
  3. Step 3: Cross multiply
    78,416.28x = 108,214.92 × 42,606.58
  4. Step 4: Simplify right side
    78,416.28x = 4,610,667,646.17
  5. Step 5: Solve for x
    x = 4,610,667,646.17/78,416.28
  6. Step 6: Final answer
    x = 58,797.33

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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.