Home / 84,548.52-116,566.32-72,738.72

Finding the Fourth Proportional to 84,548.52, 116,566.32 and 72,738.72

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Solution

The fourth proportional to 84,548.52, 116,566.32 and 72,738.72 is: 100,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,548.52 : 116,566.32 = 72,738.72 : x
  2. Step 2: Convert to fraction form
    84,548.52/116,566.32 = 72,738.72/x
  3. Step 3: Cross multiply
    84,548.52x = 116,566.32 × 72,738.72
  4. Step 4: Simplify right side
    84,548.52x = 8,478,884,911.91
  5. Step 5: Solve for x
    x = 8,478,884,911.91/84,548.52
  6. Step 6: Final answer
    x = 100,284.25

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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.