Home / 64,646.20-89,210.70-35,965.54

Finding the Fourth Proportional to 64,646.20, 89,210.70 and 35,965.54

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Solution

The fourth proportional to 64,646.20, 89,210.70 and 35,965.54 is: 49,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,646.20 : 89,210.70 = 35,965.54 : x
  2. Step 2: Convert to fraction form
    64,646.20/89,210.70 = 35,965.54/x
  3. Step 3: Cross multiply
    64,646.20x = 89,210.70 × 35,965.54
  4. Step 4: Simplify right side
    64,646.20x = 3,208,510,999.28
  5. Step 5: Solve for x
    x = 3,208,510,999.28/64,646.20
  6. Step 6: Final answer
    x = 49,631.86

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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.