Home / 78,856.40-108,818.74-43,046.37

Finding the Fourth Proportional to 78,856.40, 108,818.74 and 43,046.37

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Solution

The fourth proportional to 78,856.40, 108,818.74 and 43,046.37 is: 59,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,856.40 : 108,818.74 = 43,046.37 : x
  2. Step 2: Convert to fraction form
    78,856.40/108,818.74 = 43,046.37/x
  3. Step 3: Cross multiply
    78,856.40x = 108,818.74 × 43,046.37
  4. Step 4: Simplify right side
    78,856.40x = 4,684,251,798.78
  5. Step 5: Solve for x
    x = 4,684,251,798.78/78,856.40
  6. Step 6: Final answer
    x = 59,402.30

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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.