Home / 82,717.36-114,098.76-72,132.40

Finding the Fourth Proportional to 82,717.36, 114,098.76 and 72,132.40

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Solution

The fourth proportional to 82,717.36, 114,098.76 and 72,132.40 is: 99,498.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,717.36 : 114,098.76 = 72,132.40 : x
  2. Step 2: Convert to fraction form
    82,717.36/114,098.76 = 72,132.40/x
  3. Step 3: Cross multiply
    82,717.36x = 114,098.76 × 72,132.40
  4. Step 4: Simplify right side
    82,717.36x = 8,230,217,395.82
  5. Step 5: Solve for x
    x = 8,230,217,395.82/82,717.36
  6. Step 6: Final answer
    x = 99,498.07

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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.