Home / 77,742.74-116,614.04-21,582.81

Finding the Fourth Proportional to 77,742.74, 116,614.04 and 21,582.81

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Solution

The fourth proportional to 77,742.74, 116,614.04 and 21,582.81 is: 32,374.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,742.74 : 116,614.04 = 21,582.81 : x
  2. Step 2: Convert to fraction form
    77,742.74/116,614.04 = 21,582.81/x
  3. Step 3: Cross multiply
    77,742.74x = 116,614.04 × 21,582.81
  4. Step 4: Simplify right side
    77,742.74x = 2,516,857,977.67
  5. Step 5: Solve for x
    x = 2,516,857,977.67/77,742.74
  6. Step 6: Final answer
    x = 32,374.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.