Home / 92,770.18-128,023.11-50,328.72

Finding the Fourth Proportional to 92,770.18, 128,023.11 and 50,328.72

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Solution

The fourth proportional to 92,770.18, 128,023.11 and 50,328.72 is: 69,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,770.18 : 128,023.11 = 50,328.72 : x
  2. Step 2: Convert to fraction form
    92,770.18/128,023.11 = 50,328.72/x
  3. Step 3: Cross multiply
    92,770.18x = 128,023.11 × 50,328.72
  4. Step 4: Simplify right side
    92,770.18x = 6,443,239,256.72
  5. Step 5: Solve for x
    x = 6,443,239,256.72/92,770.18
  6. Step 6: Final answer
    x = 69,453.78

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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.