Home / 82,125.80-123,246.30-52,615.40

Finding the Fourth Proportional to 82,125.80, 123,246.30 and 52,615.40

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Solution

The fourth proportional to 82,125.80, 123,246.30 and 52,615.40 is: 78,960.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,125.80 : 123,246.30 = 52,615.40 : x
  2. Step 2: Convert to fraction form
    82,125.80/123,246.30 = 52,615.40/x
  3. Step 3: Cross multiply
    82,125.80x = 123,246.30 × 52,615.40
  4. Step 4: Simplify right side
    82,125.80x = 6,484,653,373.02
  5. Step 5: Solve for x
    x = 6,484,653,373.02/82,125.80
  6. Step 6: Final answer
    x = 78,960.00

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1.5x scale

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.