Home / 82,718.56-124,030.76-56,455.12

Finding the Fourth Proportional to 82,718.56, 124,030.76 and 56,455.12

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Solution

The fourth proportional to 82,718.56, 124,030.76 and 56,455.12 is: 84,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,718.56 : 124,030.76 = 56,455.12 : x
  2. Step 2: Convert to fraction form
    82,718.56/124,030.76 = 56,455.12/x
  3. Step 3: Cross multiply
    82,718.56x = 124,030.76 × 56,455.12
  4. Step 4: Simplify right side
    82,718.56x = 7,002,171,439.49
  5. Step 5: Solve for x
    x = 7,002,171,439.49/82,718.56
  6. Step 6: Final answer
    x = 84,650.55

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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.