Home / 82,886.20-124,329.30-51,393.40

Finding the Fourth Proportional to 82,886.20, 124,329.30 and 51,393.40

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Solution

The fourth proportional to 82,886.20, 124,329.30 and 51,393.40 is: 77,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,886.20 : 124,329.30 = 51,393.40 : x
  2. Step 2: Convert to fraction form
    82,886.20/124,329.30 = 51,393.40/x
  3. Step 3: Cross multiply
    82,886.20x = 124,329.30 × 51,393.40
  4. Step 4: Simplify right side
    82,886.20x = 6,389,705,446.62
  5. Step 5: Solve for x
    x = 6,389,705,446.62/82,886.20
  6. Step 6: Final answer
    x = 77,090.10

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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.