Home / 86,968.80-130,453.20-59,320.80

Finding the Fourth Proportional to 86,968.80, 130,453.20 and 59,320.80

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Solution

The fourth proportional to 86,968.80, 130,453.20 and 59,320.80 is: 88,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,968.80 : 130,453.20 = 59,320.80 : x
  2. Step 2: Convert to fraction form
    86,968.80/130,453.20 = 59,320.80/x
  3. Step 3: Cross multiply
    86,968.80x = 130,453.20 × 59,320.80
  4. Step 4: Simplify right side
    86,968.80x = 7,738,588,186.56
  5. Step 5: Solve for x
    x = 7,738,588,186.56/86,968.80
  6. Step 6: Final answer
    x = 88,981.20

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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.