Home / 87,074.80-130,611.64-42,043.60

Finding the Fourth Proportional to 87,074.80, 130,611.64 and 42,043.60

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Solution

The fourth proportional to 87,074.80, 130,611.64 and 42,043.60 is: 63,065.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,074.80 : 130,611.64 = 42,043.60 : x
  2. Step 2: Convert to fraction form
    87,074.80/130,611.64 = 42,043.60/x
  3. Step 3: Cross multiply
    87,074.80x = 130,611.64 × 42,043.60
  4. Step 4: Simplify right side
    87,074.80x = 5,491,383,547.50
  5. Step 5: Solve for x
    x = 5,491,383,547.50/87,074.80
  6. Step 6: Final answer
    x = 63,065.13

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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.