Home / 92,921.72-128,221.69-51,527.67

Finding the Fourth Proportional to 92,921.72, 128,221.69 and 51,527.67

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Solution

The fourth proportional to 92,921.72, 128,221.69 and 51,527.67 is: 71,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,921.72 : 128,221.69 = 51,527.67 : x
  2. Step 2: Convert to fraction form
    92,921.72/128,221.69 = 51,527.67/x
  3. Step 3: Cross multiply
    92,921.72x = 128,221.69 × 51,527.67
  4. Step 4: Simplify right side
    92,921.72x = 6,606,964,800.34
  5. Step 5: Solve for x
    x = 6,606,964,800.34/92,921.72
  6. Step 6: Final answer
    x = 71,102.48

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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.