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Finding the Fourth Proportional to 70,371.59, 97,109.18 and 38,539.80

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Solution

The fourth proportional to 70,371.59, 97,109.18 and 38,539.80 is: 53,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,371.59 : 97,109.18 = 38,539.80 : x
  2. Step 2: Convert to fraction form
    70,371.59/97,109.18 = 38,539.80/x
  3. Step 3: Cross multiply
    70,371.59x = 97,109.18 × 38,539.80
  4. Step 4: Simplify right side
    70,371.59x = 3,742,568,327.19
  5. Step 5: Solve for x
    x = 3,742,568,327.19/70,371.59
  6. Step 6: Final answer
    x = 53,182.95

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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.