Home / 86,984.12-130,475.49-51,690.04

Finding the Fourth Proportional to 86,984.12, 130,475.49 and 51,690.04

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Solution

The fourth proportional to 86,984.12, 130,475.49 and 51,690.04 is: 77,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,984.12 : 130,475.49 = 51,690.04 : x
  2. Step 2: Convert to fraction form
    86,984.12/130,475.49 = 51,690.04/x
  3. Step 3: Cross multiply
    86,984.12x = 130,475.49 × 51,690.04
  4. Step 4: Simplify right side
    86,984.12x = 6,744,283,297.12
  5. Step 5: Solve for x
    x = 6,744,283,297.12/86,984.12
  6. Step 6: Final answer
    x = 77,534.65

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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.