Home / 83,977.88-115,851.98-56,745.16

Finding the Fourth Proportional to 83,977.88, 115,851.98 and 56,745.16

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Solution

The fourth proportional to 83,977.88, 115,851.98 and 56,745.16 is: 78,282.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,977.88 : 115,851.98 = 56,745.16 : x
  2. Step 2: Convert to fraction form
    83,977.88/115,851.98 = 56,745.16/x
  3. Step 3: Cross multiply
    83,977.88x = 115,851.98 × 56,745.16
  4. Step 4: Simplify right side
    83,977.88x = 6,574,039,141.42
  5. Step 5: Solve for x
    x = 6,574,039,141.42/83,977.88
  6. Step 6: Final answer
    x = 78,282.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.