Home / 64,701.55-89,336.81-63,668.19

Finding the Fourth Proportional to 64,701.55, 89,336.81 and 63,668.19

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Solution

The fourth proportional to 64,701.55, 89,336.81 and 63,668.19 is: 87,910.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,701.55 : 89,336.81 = 63,668.19 : x
  2. Step 2: Convert to fraction form
    64,701.55/89,336.81 = 63,668.19/x
  3. Step 3: Cross multiply
    64,701.55x = 89,336.81 × 63,668.19
  4. Step 4: Simplify right side
    64,701.55x = 5,687,912,993.07
  5. Step 5: Solve for x
    x = 5,687,912,993.07/64,701.55
  6. Step 6: Final answer
    x = 87,910.00

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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.