Home / 83,861.36-115,700.40-47,558.88

Finding the Fourth Proportional to 83,861.36, 115,700.40 and 47,558.88

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Solution

The fourth proportional to 83,861.36, 115,700.40 and 47,558.88 is: 65,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,861.36 : 115,700.40 = 47,558.88 : x
  2. Step 2: Convert to fraction form
    83,861.36/115,700.40 = 47,558.88/x
  3. Step 3: Cross multiply
    83,861.36x = 115,700.40 × 47,558.88
  4. Step 4: Simplify right side
    83,861.36x = 5,502,581,439.55
  5. Step 5: Solve for x
    x = 5,502,581,439.55/83,861.36
  6. Step 6: Final answer
    x = 65,615.22

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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.