Home / 64,854.08-89,478.04-51,198.84

Finding the Fourth Proportional to 64,854.08, 89,478.04 and 51,198.84

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Solution

The fourth proportional to 64,854.08, 89,478.04 and 51,198.84 is: 70,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,854.08 : 89,478.04 = 51,198.84 : x
  2. Step 2: Convert to fraction form
    64,854.08/89,478.04 = 51,198.84/x
  3. Step 3: Cross multiply
    64,854.08x = 89,478.04 × 51,198.84
  4. Step 4: Simplify right side
    64,854.08x = 4,581,171,853.47
  5. Step 5: Solve for x
    x = 4,581,171,853.47/64,854.08
  6. Step 6: Final answer
    x = 70,638.14

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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.