Home / 86,930.46-130,512.33-51,457.32

Finding the Fourth Proportional to 86,930.46, 130,512.33 and 51,457.32

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Solution

The fourth proportional to 86,930.46, 130,512.33 and 51,457.32 is: 77,255.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,930.46 : 130,512.33 = 51,457.32 : x
  2. Step 2: Convert to fraction form
    86,930.46/130,512.33 = 51,457.32/x
  3. Step 3: Cross multiply
    86,930.46x = 130,512.33 × 51,457.32
  4. Step 4: Simplify right side
    86,930.46x = 6,715,814,728.76
  5. Step 5: Solve for x
    x = 6,715,814,728.76/86,930.46
  6. Step 6: Final answer
    x = 77,255.02

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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.