Home / 84,345.27-116,483.64-72,960.11

Finding the Fourth Proportional to 84,345.27, 116,483.64 and 72,960.11

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Solution

The fourth proportional to 84,345.27, 116,483.64 and 72,960.11 is: 100,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,345.27 : 116,483.64 = 72,960.11 : x
  2. Step 2: Convert to fraction form
    84,345.27/116,483.64 = 72,960.11/x
  3. Step 3: Cross multiply
    84,345.27x = 116,483.64 × 72,960.11
  4. Step 4: Simplify right side
    84,345.27x = 8,498,658,768.40
  5. Step 5: Solve for x
    x = 8,498,658,768.40/84,345.27
  6. Step 6: Final answer
    x = 100,760.35

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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.