Home / 64,170.81-88,567.16-38,681.73

Finding the Fourth Proportional to 64,170.81, 88,567.16 and 38,681.73

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Solution

The fourth proportional to 64,170.81, 88,567.16 and 38,681.73 is: 53,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,170.81 : 88,567.16 = 38,681.73 : x
  2. Step 2: Convert to fraction form
    64,170.81/88,567.16 = 38,681.73/x
  3. Step 3: Cross multiply
    64,170.81x = 88,567.16 × 38,681.73
  4. Step 4: Simplify right side
    64,170.81x = 3,425,930,776.58
  5. Step 5: Solve for x
    x = 3,425,930,776.58/64,170.81
  6. Step 6: Final answer
    x = 53,387.68

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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.