Home / 86,733.16-130,011.12-49,213.97

Finding the Fourth Proportional to 86,733.16, 130,011.12 and 49,213.97

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Solution

The fourth proportional to 86,733.16, 130,011.12 and 49,213.97 is: 73,770.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,733.16 : 130,011.12 = 49,213.97 : x
  2. Step 2: Convert to fraction form
    86,733.16/130,011.12 = 49,213.97/x
  3. Step 3: Cross multiply
    86,733.16x = 130,011.12 × 49,213.97
  4. Step 4: Simplify right side
    86,733.16x = 6,398,363,113.28
  5. Step 5: Solve for x
    x = 6,398,363,113.28/86,733.16
  6. Step 6: Final answer
    x = 73,770.67

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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.