Home / 92,451.36-138,754.80-39,900.72

Finding the Fourth Proportional to 92,451.36, 138,754.80 and 39,900.72

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Solution

The fourth proportional to 92,451.36, 138,754.80 and 39,900.72 is: 59,884.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,451.36 : 138,754.80 = 39,900.72 : x
  2. Step 2: Convert to fraction form
    92,451.36/138,754.80 = 39,900.72/x
  3. Step 3: Cross multiply
    92,451.36x = 138,754.80 × 39,900.72
  4. Step 4: Simplify right side
    92,451.36x = 5,536,416,423.46
  5. Step 5: Solve for x
    x = 5,536,416,423.46/92,451.36
  6. Step 6: Final answer
    x = 59,884.64

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1.5x scale

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.