Home / 92,951.21-128,272.33-52,672.68

Finding the Fourth Proportional to 92,951.21, 128,272.33 and 52,672.68

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Solution

The fourth proportional to 92,951.21, 128,272.33 and 52,672.68 is: 72,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,951.21 : 128,272.33 = 52,672.68 : x
  2. Step 2: Convert to fraction form
    92,951.21/128,272.33 = 52,672.68/x
  3. Step 3: Cross multiply
    92,951.21x = 128,272.33 × 52,672.68
  4. Step 4: Simplify right side
    92,951.21x = 6,756,447,160.50
  5. Step 5: Solve for x
    x = 6,756,447,160.50/92,951.21
  6. Step 6: Final answer
    x = 72,688.10

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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.