Home / 70,521.92-97,320.27-38,690.81

Finding the Fourth Proportional to 70,521.92, 97,320.27 and 38,690.81

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Solution

The fourth proportional to 70,521.92, 97,320.27 and 38,690.81 is: 53,393.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,521.92 : 97,320.27 = 38,690.81 : x
  2. Step 2: Convert to fraction form
    70,521.92/97,320.27 = 38,690.81/x
  3. Step 3: Cross multiply
    70,521.92x = 97,320.27 × 38,690.81
  4. Step 4: Simplify right side
    70,521.92x = 3,765,399,589.12
  5. Step 5: Solve for x
    x = 3,765,399,589.12/70,521.92
  6. Step 6: Final answer
    x = 53,393.33

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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.