Home / 82,710.20-124,065.30-51,606.20

Finding the Fourth Proportional to 82,710.20, 124,065.30 and 51,606.20

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Solution

The fourth proportional to 82,710.20, 124,065.30 and 51,606.20 is: 77,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,710.20 : 124,065.30 = 51,606.20 : x
  2. Step 2: Convert to fraction form
    82,710.20/124,065.30 = 51,606.20/x
  3. Step 3: Cross multiply
    82,710.20x = 124,065.30 × 51,606.20
  4. Step 4: Simplify right side
    82,710.20x = 6,402,538,684.86
  5. Step 5: Solve for x
    x = 6,402,538,684.86/82,710.20
  6. Step 6: Final answer
    x = 77,409.30

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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.