Home / 64,884.12-89,407.23-47,861.40

Finding the Fourth Proportional to 64,884.12, 89,407.23 and 47,861.40

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Solution

The fourth proportional to 64,884.12, 89,407.23 and 47,861.40 is: 65,950.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,884.12 : 89,407.23 = 47,861.40 : x
  2. Step 2: Convert to fraction form
    64,884.12/89,407.23 = 47,861.40/x
  3. Step 3: Cross multiply
    64,884.12x = 89,407.23 × 47,861.40
  4. Step 4: Simplify right side
    64,884.12x = 4,279,155,197.92
  5. Step 5: Solve for x
    x = 4,279,155,197.92/64,884.12
  6. Step 6: Final answer
    x = 65,950.73

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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.