Home / 64,631.08-89,189.38-36,336.68

Finding the Fourth Proportional to 64,631.08, 89,189.38 and 36,336.68

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Solution

The fourth proportional to 64,631.08, 89,189.38 and 36,336.68 is: 50,143.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,631.08 : 89,189.38 = 36,336.68 : x
  2. Step 2: Convert to fraction form
    64,631.08/89,189.38 = 36,336.68/x
  3. Step 3: Cross multiply
    64,631.08x = 89,189.38 × 36,336.68
  4. Step 4: Simplify right side
    64,631.08x = 3,240,845,960.46
  5. Step 5: Solve for x
    x = 3,240,845,960.46/64,631.08
  6. Step 6: Final answer
    x = 50,143.77

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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.