Home / 65,187.18-89,951.91-38,336.28

Finding the Fourth Proportional to 65,187.18, 89,951.91 and 38,336.28

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Solution

The fourth proportional to 65,187.18, 89,951.91 and 38,336.28 is: 52,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,187.18 : 89,951.91 = 38,336.28 : x
  2. Step 2: Convert to fraction form
    65,187.18/89,951.91 = 38,336.28/x
  3. Step 3: Cross multiply
    65,187.18x = 89,951.91 × 38,336.28
  4. Step 4: Simplify right side
    65,187.18x = 3,448,421,608.29
  5. Step 5: Solve for x
    x = 3,448,421,608.29/65,187.18
  6. Step 6: Final answer
    x = 52,900.30

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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.