Home / 87,075.99-130,616.88-30,915.36

Finding the Fourth Proportional to 87,075.99, 130,616.88 and 30,915.36

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Solution

The fourth proportional to 87,075.99, 130,616.88 and 30,915.36 is: 46,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,075.99 : 130,616.88 = 30,915.36 : x
  2. Step 2: Convert to fraction form
    87,075.99/130,616.88 = 30,915.36/x
  3. Step 3: Cross multiply
    87,075.99x = 130,616.88 × 30,915.36
  4. Step 4: Simplify right side
    87,075.99x = 4,038,067,867.28
  5. Step 5: Solve for x
    x = 4,038,067,867.28/87,075.99
  6. Step 6: Final answer
    x = 46,374.07

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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.