Home / 78,818.40-108,767.34-43,008.84

Finding the Fourth Proportional to 78,818.40, 108,767.34 and 43,008.84

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Solution

The fourth proportional to 78,818.40, 108,767.34 and 43,008.84 is: 59,351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,818.40 : 108,767.34 = 43,008.84 : x
  2. Step 2: Convert to fraction form
    78,818.40/108,767.34 = 43,008.84/x
  3. Step 3: Cross multiply
    78,818.40x = 108,767.34 × 43,008.84
  4. Step 4: Simplify right side
    78,818.40x = 4,677,957,123.29
  5. Step 5: Solve for x
    x = 4,677,957,123.29/78,818.40
  6. Step 6: Final answer
    x = 59,351.08

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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.