Home / 86,830.64-130,220.04-36,910.52

Finding the Fourth Proportional to 86,830.64, 130,220.04 and 36,910.52

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Solution

The fourth proportional to 86,830.64, 130,220.04 and 36,910.52 is: 55,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,830.64 : 130,220.04 = 36,910.52 : x
  2. Step 2: Convert to fraction form
    86,830.64/130,220.04 = 36,910.52/x
  3. Step 3: Cross multiply
    86,830.64x = 130,220.04 × 36,910.52
  4. Step 4: Simplify right side
    86,830.64x = 4,806,489,390.82
  5. Step 5: Solve for x
    x = 4,806,489,390.82/86,830.64
  6. Step 6: Final answer
    x = 55,354.76

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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.